The reason I asked is because I wanted a pretty accurate and cheap way to test my blocks against some commercial ones,to make sure that its performance merits the $90 that BillA charges for PROPER testing and analysis(and of coarse for the Free publicity

I would hate to be thinking that my block performs so much better than block"X" and have Bill tell me its a peice of $hit and thanks for the donation pal!
I guess Im pretty much screwed then.
I was going to get an older Epox board that supports reading of the XP diode, but I dont see any point based on all of your advise.
And my block is definately NOT going to have a hole drilled into it, not by me anyway!
Thanks all, for the advise and insight.