OKIE,
As of yet, I only have experience with Ergopharm's Andro Spray, which was far more effective than I expected, and intransal 4AD which jacked me up for workouts even when on steroids. After reading a bit, it looks like Avant Labs has a superior delivery system. I will be starting a 2 week cycle of "ONE" on 12-31-01. I have very high expectations for that.
As far as what to use when cutting, I think either 1AD or 4AD would work well. Either one will have an anti-catabolic effect. 1AD will not bloat you though. With 4AD you can lose fat, but will retain a bit of water. The water will go away a few weeks after you stop 4AD.
When I am bulking, I don't mind the water. When dieting, which I HATE, I like to feel as tight as possible, so I'd probably opt for 1AD.