ive built enough bikes and used enough long stems that i know that it is all of the above, but the total effect is more than i would have guessed. at first i thought the wheel was the main offender but now i think it is the fork. in all honesty it may be my perception that makes it feel so sloppy. most of my miles are done on a bike with 31.8mm bars, a 1 1/8th steerer, and a really stiff wheelset. i will throw my eurus wheel in it one of these days and see how much of a change it makes.

i am quite aware of the effects of chassis tuning on autos

not boring at all. i am quite excited for round two.