It seems like you don’t know what the word means. It’s difficult to have a discussion on a mildly technical subject when people use words incorrectly. It leads to frequent misunderstandings.
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And yet during that fraction of a second his speed (as reported on the screen) dropped from 36 to 35kph even though he should have been continuing to accelerate. It’s not just that he felt a bit more draft for a fraction of a second, his speed was abruptly cut meaning a large loss of kinetic energy that had to be replenished.
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I’ve watched it numerous times, and whilst I can’t be certain whether it’s intentional or not, the slight slowdown does seem reasonable to stop you flying through the pack from behind. Maybe it’s a bug… maybe not. I’m a bit lost now as to the details of the algorithm, but it seems pretty reasonable.
On a separate know, your system is struggling so hard there’s a decent chance you are suffering from all sorts of lag with rider positioning. Give that screen a cleanup, enable GPU acceleration in sauce, or even better run most of those sauce windows on a different device using the browser.
This is exactly what happens in IRL. Trust me, I was there last week and the slowdown due to riders in front over the crest followed by the inevitable acceleration is brutal and that’s where I got dropped.
didn’t watch any of the videos but you’re probably right. before i built a dedicated PC and just ran zwift from an office laptop i would regularly have to average ~.5wkg more than everyone else in a race just because the game ran at like 5fps. there’s probably a technical reason behind that somewhere. this was back in pd2 though so who knows.
as far as getting autobraked… well, the way i perceive it works is that the dynamics probably are unfavourable to people who aren’t particularly steady riders, but i don’t personally see that as a problem. riding smoothly isn’t a bad habit for anyone to pick up
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doesn’t look like a big deal to me. it’s not like you got spat out the back, you just settled in normally right? if that happened to me i wouldn’t have paid any attention to it
i agree it can be dicey at the top of climbs, i usually make a small effort to get to the front of the pack right before i get to the summit just to avoid any issues
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I don’t think this is specific to PD4. Happened prior to this and also don’t think this is necessarily a bad thing.
or 35.51km/h to 35.49km/h
If there was no red numbers the rider would not even notice that fraction of a second.
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yeah, you might be right. it’s a habit i’ve always had anyway. i haven’t had to change anything about the way i ride for pd4, that’s for sure
I’ve definitely crested a couple of wheels behind on PD3 and been rapidly dropped going over the top.
Which is what I expected to happen 
I thought auto brake was only part of PD4. Anyways this was 12 days ago.
This is just physics William.
I would highly doubt there was even a remote chance of me flying through the pack. As a D rider in an A race the out of the pen pace would be too great. You can tell how far the front have pulled after just a few seconds.
I think it is huge, when we factor in many races have fts or FAL. Something like Alley sprint, they are long and good chance people lose power for a micro of a second. But the sprints are also decided by hundredth of a second.
I think that is the reason people brought this up, they it isn’t.
At 300 watts on the flats in the draft I should continue to accelerate to 45kmh.
Just wondering if this is a feature or a bug. And if it was a feature what is the intent?
I absolutely agree that you were unfairly braked and it cost you some speed, but as a minor detail on the start, it looked to me that you were left standing at the line just for a second or two. I always turn the pedals over slowly in a fairly high gear as the clock runs down from 15s and then stand up for a few pedal strokes just on about the 2 or 1s mark so that I’m hitting big watts as the gate opens.
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I know that I have a couple seconds of lag in my system so I start spinning up with about 5s to go and try to jump hard at about 2s to go so that I am actually accelerating out of the pens as the banner drops. One of the reasons I make sure to always be at the front of the pen. It’s not like being 10-20 m ehead is going to mean I’m going to make a break and run the whole race solo, but it does give a cushion for that lag so I’m not already on my back foot chasing when everyone is already going full out at the start.
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In all the races I’ve done in A over the years, I’ve barely touch over 400w and never get dropped out the gate. Always been lost with this unnecessary sprinting out the gate stuff. But that’s a different point completely. On Zwift well before PD4 there has always been a power range that keeps you in a similar drafting position. Learning the lower end of that is good efficient riding. I think PD4 just makes that more the case.
It’s working as intended. You reduced your power from sprinting to 105w. You got slowed down. This is how it was designed to work, whether you like it or not.
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