RE: Sebart Wind S Pro
The standard PBG 103T (7/8" X 30") tube is a little short. We had PBG make us some special length 7/8" x 31.5" tubes as a replacement for the factory tube. The weight of the stock tube is 4.15oz and the PBG is 2.16oz so essentially a 2oz savings. Most everyone I have heard from makes weight with the stock tube so this would be an individual choice to save a couple ounces and not a necessity to make weight. The stock tube does have a very slight taper < 1/64" at the ends so you may need to relieve the sockets a tiny bit or even wet sand a tiny amount from the PBG tube which is a constant 7/8" diameter.