Calculus of dive gear packing

After our recent experiences with dive travel and baggage limits, we decided to avert future ticket-counter reshuffling by weighing each piece of gear to create a quick-reference guide for packing:

Gear item	Dry weight (lbs.)
Drysuit (DUI TLS350) in bag	8.5-9.5
DUI Rockboots (pair)	2.4
Backgas regs (Apeks DS4/TX50) + gauges	7.5
Stage/deco reg (Apeks TX100)	3.6
Stage/deco reg (MK25/G250)	2.5
Halcyon Al BP	4.2
DeepSeaSupply SS BP	8.0
Halcyon 40lbs Evolve wing	2.3
XL Jetfins (pair)	5.0
Turtle fins (pair)	5.8
Pocket contents (wetnotes, SMB/spool, backup mask, airhorn, stage leash)	3.2
Scout backup light (with Batteries)	0.6
Argon reg	0.2
Double-ender boltsnap	0.2
Yoke/DIN adapter	0.8
9Ah NiMH battery	3.3
Helios/Salvo 9Ah canister	1.4
Halcyon 18W/Salvo 21W lighthead	2.3
Halcyon boatbag	1.9
Halcyon 4.5 SMB/150' spool	1.4
Diving Concepts drygloves (pair)	0.8