Question for all of you that have spent good money on a professional fit.

Did you, during your "professional fit" ride on a trainer (or the road) to determine optimal position based on HR?



I'm questioning my fit? Which I'll admit wasn't done by a professional "tri" bike fitter.... Yes a good fitter, reputable for the locals. However, I don't think it's a optimal fit...

I can ride for hours on the aero bars, it's a moderatly aggressive fit (saddle about 2" above the arm rests), angles all seem to line up per FIST approach (I've done those measurements) and I was able to determine on the computrainer that I put out more power.... However....

During this afternoon's ride, in the flats, in the aero position, I was averaging 22/23 mph with a cadence of 90ish and an avg HR of 148. When the interval was done, I started home. I was on the cowhorns just cruising along and I noticed that I was avg 21.5/22, cadence of 90ish but my HR was 138.

So, I'm thinking that my semi-aggressive fit, while comfortable, may not be optimal purely based on my HR.

Thoughts?