I DIY'd the 5,000 lb Airlift kit & dash controls on the Tiger about 4 years ago. The ride quality improved markedly, with just 20-30 psi. The bags take that short thick bottom leaf out of play in normal driving.... traded "slamming" for "bouncing". Rancho 9000 shocks helped that. The old AirLift compressor from another kit died pretty quickly, and I replaced it with a $25 unit from Harbor Fright.
Main tip is not to install them with a single fill point. That'll increase sway.
Change the rear shocks if they're at all weak, since air has no self-damping quality, unlike steel springs.
I also DIY'd a 1000 lb kit on my '95 Toyota SR5 4x4 pickup in '98. So far no, problems.
Jim, "You're just jealous because the voices are talking to me."