With all due respect Randy, while rising up may be problematic, following straight through the cue ball may help increase consistency on force follows, at least it does for me. I tend to pot those shots more often and get what appears to be added spin when it's needed. Perhaps I'm wrong, but one of my pool instructors taught me to shoot the shots that way. He gave me "his permission" to do so, not that I needed it. And as for dropping the elbow on those kinds of shots, the drop if it occurs at all, and sometimes isn't needed IMHO, needs to occur after the tip contacts the cue ball. When I've tried to control my stroke to such an extent that I get no straight forward motion on the cue stick after contact with the cue ball on those power shots, my accuracy has gone down, and I've gotten less action on the cue ball.
At this point, I'm not planning to try to change my stroke to accommodate a pinned type follow through. When I asked Mark Wilson about this some time ago, he was very cautious not to condemn dropping the elbow on the kind of shot we're talking about here.
Obviously, I'm not in any way suggesting a shoveling motion should be used, just the normal drop that may occur when really putting oomph into the shot.
Flex