Drafting

When drafting, are your watts reduced in relation to your relative speed?

Drafting works like real drafting. If you are in the sweet spot, the wattage required to maintain the same speed is reduced by around 20% at typical riding speeds. If there are more then one in a draft-line, the gains are even greater. At higher speeds, the benefits are exponential.
Dan
RIDE ON.

I am a heavier rider 100kgs

I feel that I get pooched on the draft option. I get on the front of the group and we are pushing 2.5 w pkg, or 250 watts for me. When I drop back in the group and someone else goes forward, my watts drop precipitously but not the effort I have to maintain it. I am at about 130 ~ but it feels more like 200+. I realize that lighter people going ahead will drop speed at 2.5 wpkg, but it doesn’t feel like that for me. 

I am using a wahoo kickr, which is calibrated every second ride. .