Loading of GBBR is not that slow, But how long each gas loaded will last ? You basically need to do both after 2 mags (same magazine). That's around 60 to 80 rounds.
Whereas a large battery or lipo can easily last for more than 1,500 rounds of BBS. And the battery shape much easier to carry when compared with propane or gas can. It is quite easy to see which way is more efficient, epecially it is a long milsim game where leaving the field too often is not encouraged.
But I agree that it is the playstyle preferred by different players. So it is all about personal preference.
Last edited by Swattiger; May 18th, 2013 at 19:08..