A lot of people on the Cusl2 forum have mentioned this, and some claim it gives better stability, but I haven't seen any "I couldn't do this before, and now I can" stuff specifically posted.
I do know this: I did the finger thing the other day, and that sucker will fry eggs! Mine has a heatsink and some AS epoxy in it's near future.
As with all this kind of thing, it can't hurt, and might help.