We had a nice discussion on these a little while back (A couple of good videos on summer pruning pomes) and this is a good place to continue the discussion.
I did several of these cuts and have to say they’re performing pretty much as predicted. There are some that immediately formed terminal spurs, others that spurred heavily behind the cut, some that didn’t spur at all, and a few that I’m just not quite sure on.
@alan followed up with comments that I found very useful: Favorite Pruning Guru .
All in all, time well spent.