If it helps inflation, I cant help but to think that it will deflate easier as well.
Yes it should hold its shape better.
My other concern is the added weight. I guess time will tell!
If it has the same or better low end than the S3 I will probably be upgrading to a 18 or 21 S4.
FB - Flexifoil: Rage 2.5 | Gin Tonkawa 3.1/5.4/8.7
DP - Peter Lynn: Venom 8/10/13/16, Phantom 12
TUBES - North EVO 7/9/11/13, Dyno 15/18
BOARDS - North Jaime | North Nugget | MBS Comp 95x | Burton Juice Wagon 157
BUGGY - Libre Truck II, Libre Full Race