Although the cams would have course of increased the VE at the top end (proved by the leaness we found there) and hence reduced the acceptable timing, I could find no evidence of det anyway, I think that the map he had must have been pretty conservative in this respect already.

So because of the issues with the software and my lack of happiness with mapping it well enough to do the ignition timing in the fashion I wanted to, I refused to do the timing at all and simply "det checked" it for him instead, however this of course means I cannot tell him if currently his timing is 1 degree from det or 3 degrees from det or 10 degrees from det, I simply know its not 0 degrees from det.
Consequently to be "perfect" IMHO it needs to go on the rollers, or I need a lot more time to do it, as its not that I cant do it on that software, merely that I couldnt in the time available to me on this occasion, and TBH I was hoping there was an option to do the timing the way I want to, so I can change multiple values simply and quickly, hence this post in the first place.