Thanks Harry! Mine has seen it's fair share of hard riding as well....it's a DD/racer combo. I'm not really concerned about reliability these days, most of the parts are new after being upgraded.
Also, here's a sound clip of the ITBs after the new bottom end. I'm only revving to 7k for now, but I'll be going to 7200 on race days. Doesn't sound like 200 rpm would make much of a difference, but the sound completely changes and it pulls better from that 200 rpm as well.
(Sorry, can't get the embed to work right!)