Thats right keep you finger on the shut off and kill it ASAP!As soon as the top moves, even if you're not roping it down, saw gets shut off and out of the way. That is of course assuming a proper face and hinge, if you don't have that you've already messed up.
Completely agree, it's not uncommon that I will climb a tree until its only 4-5" around the bole before I catch the top. Having a good rope man who knows how to let it run is probably the most important part. And I've found that groundies handle smaller tops much better than bigger ones.Small is how I fly unless bombing or static load to adjacent anchor point. I have no problem with heights I'm a tree climber so I go to the top. Blocking large tops will at some point hurt you as too many things can and will happen when the load is caught.