I just installed Churchkey's VBAK last Saturday, took about 2.5 - 3 hours including the Baron's AIS removal kit. Fit and quality of components was good. Instructions were fine for those with "bike wrenchology" skills - but could be confusing for those without a clue. It's not rocket science though, and there's plenty of help here if you need it. Not only did it get rid of tons of useless parts, it cleaned up the appearance of the engine by removing the big ugly air cleaner - I kept the AIS cover. I just bumped up the ECU as a PCIII is not in the budget this month.
Bottom line - the VBAK works great, now the engine breathes (I mean it really does "huff & suck") under the tank. Low end grunt is simply incredible. Serious bang for the buck! This mod should be on everyone's list.