I have a tough time drafting. I tried to drop a gear when I got into the draft zone but my timing is off and I kept pulling ahead. If you can manage those same speeds and watts on the kicker it isn't going to effect your results much.
There were some very noticeable differences between the Pro and the Kickr for me.
First very obvious difference is the blast from the line. On the Pro there is almost no resistance in the trainer and you can blast away and get a jump start. On the Kickr the resistance is high from the off so the speed increases gradually. Today, even though I pushed up to 750 watts off the line and held it for a bit I couldn't get anywhere near the wheels of anyone else. Gonna just have to live with this (in Zwift you can do flying starts so the difference will be neutralised)
On the slight lumps, the speed on the Kickr dropped way down when on the Pro the momentum going into the lumps was keeping the speed fairly constant so long as you keep the power on. Not sure if you noticed but every time we hit a 1-2% lump you easily pulled away from me, even though I was pushing the watts up to 350+. I was then having to work hard to get back to you.
As soon as you soft pedal on the Kickr the watts drop. Not surprising I guess as it has the power meter. On the pro, as watts are linked to speed, and the speed has the advantage of momentum, watts even out more and drop less dramatically.
Speed on the Pro is smoothed out. Drops in speed are gradual. On the Kickr the speed was going up and down like a cheap girl's knickers after 6 bottles of 'K'
Kickr is quieter than the Pro (not surprising). It also feels smoother to pedal which I wasn't expecting but is nice.
Standing up and pedaling on the Kickr felt more like real life and more natural. I really liked that - I could stand up and sprint, not something I found very easy on the Pro.
I was surprised by my 30 minute watts of 256. I don't generally ride two consecutive days, so given I did give it all on the race yesterday I'm really surprised that I held that power today on the Kickr. Not sure if that flatter style course flattered me or not. Be interesting when I do a more lumpy course.
Upshot is I'll be further down the field but working damn hard to get back up there again. I'm still safely in Team Beige but with an eye on those fast guys up the road
I've got within a whisker of them before, I can do it again
I tried to give you as much draft as I could up to when I dropped out 
