Try adding just enough air to the dry suit to keep it from squeezing you, and using your BC it intended purpose, controlling your buoyancy. We dive drysuits quite a bit here in Maine as we dive all year long. I see new dry suit divers trying to control buoyancy with the suit and not their BC quite often. When you are gonna make an accent--any assent-- open the vent valve on the suit and let it vent. With a neoprene suit ankle weights help some too. Good luck, give it several dives. You may not want to go back to a wetsuit when you get the hang of it.