Hey guys I need a little bit of help. I've been playing airsoft for a year or so now but recently got into CQB. I plan on getting myself an Airsoft GI G4-18 CQBR when they come back in stock. My only problem is that it says it shoots 350+ fps, which is too hot for Vanguard. The video also shows it chronoing at about 350. My understanding is that most G&G guns come with M100 springs in them, which should be a lower fps than this is listed. What would I need to do to get this gun playable at Vanguard? Thanks for any help in advance.