As it happens all I had to do was slightly tighten the back up and then there was no leak the team mate I got this for happily has been using it at several events and walkons with no issues what so ever, buy with confidence from YT-69After being messed around with the red mini it's back open to interest. Please be aware my olive green one needed the o-rings greasing and Air pumped through it to get the seal in the bolt again! I can assume this one will be the same.
TrikkyD bought the olive one so please ask him his opinion.