I've got both in .22 - the LGU is indeed blindingly accurate (with Falcon Accuracy Plus). The jury's still out on the LGV: it doesn't seem to like the light FAP pellets, and diesels quite noticeably. When I switch to something a bit heavier, like AA Field or H&N FTT, the dieselling stops, so I'm still finding the best combo.
Cheers
Dunk