I'm sure we both agree on the solution... a proper weight check with the actual gear being used and weight is what it is.
You're right about that. Gotta get in the water and play. When I make a major change to my system, I allocate 10-20 dives to get it dialed in. Going wet to dry is about the biggest change you can make. Even bigger than going singles to doubles. Probably the only bigger change would be going to closed circuit.