Depends on what bore you use. IMO, the best thing you could possibly do for a barrel is get it freak bored, that way you have the aesthetics that match your marker and you get the freak bore options.
It won't be a game changing difference, but you might notice a quieter shot and depending on how OCD you are about air more shots.
You may call it fat, I call it bounce padding.
If I say "the safety frame claim is bull****" I'm not ripping on PE, the SL8R is my favorite gun EVER. If I say "DMs are overpriced" it doesn't mean Dye is a bad company, I want an NT11 in the worst way.
However, when I say "The Vapor is overpriced and not very good" I mean it. I won't have one unless it's cheaper than what I can get a G5 or Proton for or free.