I didn’t end up using the plenum, as I want to retain the external reg pressure adjustment and also waiting for the Ernest plenum
Whilst I have seen an increase of around 35fps with just the dual transfer port, there seems to be a couple of issues since reassembly
firstly, the air tube pressure gauge isn’t working now. What have I done wrong for this gauge not to be working now?
also, when I fire it I can see the reg gauge moving, but also I can hear air release from the block area ... it sounds as though it’s just the reg pressure building back up ... is this right?