ok, regarding the air pocket inside double sleeved cards.

heres how to get rid of the air easy and simple:

the inner sleeve (perfect fit sleeve): use a small sharp scissors and cut away a very small portion off one of the 2 edges away ( the one at the top exposing to the atmosphere).

problem solved. and pls dun tell me water will get into the cards and spill will get into it. u do not play the cards under water or near water source unless u vomit while playing.

after cutting, u can get rid of the air by pushing down your deck creating a vacuum which is good for preserving cards and cycle fresh air into it once in a while by pushing action. simple engineering.

no need to wait for the air to come out by itself. its instant cure.

not applicable for ppl with one thousand double sleeved cards.
not applicable for ppl with hands too weak to hold a pair of scissors.

children performing this method require an adult supervision.

let the flaming begins!!!

thank you.