On second thought, that's a bit mean. Sorry.
@acotrel, are you ok? Your posts have changed in the last couple weeks. Health ok, or going through something in your life? You've got a lot to add, but your posts are not as much complete thoughts as they once were, and you seem to have gotten argumentative for sake of it. Whether we all always agree is beside the point, but there seems to be a disconnect lately.
Sorry for a temporary hijack.
Very interested in this topic (valve seals/gapless rings), as I'm trying to tackle some oil consumption myself.
@jseng1, do you sell gapless rings for your pistons, or are there some that will work off the shelf for a 650?