Hmmm... That event was particularly heavily promoted on the IT forum, and they sold more ITs than KDXes back in the day (just like they sell more 4Ts than 2Ts today...
).
If old mate's KDX motor wasn't clearly superior, then either it was a very special IT or the was something wrong with the KDX.
Motor stuff is easy for a KDX because they were the same basic motor from 83 to 03. Stuff like rod kits were the same part all the way through (and shared with several years of KX125).
Shocks and forks are generic Kayaba stuff (83-88 rear shock is almost identical to floater RM125 among others), so there's no drama there.
Wheels don't have those stupid bloody Z-spokes.
KDXes don't crack barrels.
You don't need to be a midget to avoid feeling cramped on a KDX.
I'm not saying the IT is a shitbox, nor that the KDX is a perfect bike - they not have their strengths and weaknesses - and the KDX's strengths are more important to me.
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I know its not apples vs apples, but have a ride on my 89 KDX. You'll take the IT to Simmsmetal on the way home...