good to hear that you like the thread .
Hmm.. it is hard to give 100% solid advice without seeing how you acctually play. A 1 on 1 situation would definately be the best way to get a hold on the probs you describe.
All in all you the right hand moves down towards the higher strings during you play and ascending run and angles a bit as well. You could take a close look on the way Satriani holds his hands to get an idea on how imean it to be - maybe i can put a little video up with a ascending run and the hands in close up, but that may take some days.
Again, i won't say this is the only way to play guitar (of course) and there are lot of ways to get good results, so you might have to make adjustments to the described technique in order to make it work for your hands!