Cyclotron Fluid ST?

Hi @Jake_Suttell, welcome to the Zwift forums!

I also don’t see that exact trainer listed on Zwift’s supported trainers. I also didn’t see much info in a quick google search for that trainer, so I can’t tell which one to use specifically.

The difference is going to be what power curve Zwift applies to each of the listed trainers. To understand more about the power curve and wheel on trainers, see this post:
How Does Zwift Determine My Speed?

You may need to do some experimenting with the listed trainers on Zwift, do you have outdoor rides on Strava that you could compare power numbers with?