interestijng comment, are you suggesting the G leaks, i thought it was the other way round!?
I can't comment on all G's but mine leaked. When accellerating hard I got a judder which coincided with DV flutter.
When the Forge valve was fitted; problem solved.
From what I can make out VW fitted the Rev G to the later ED30 & Pirelli but decided it wasn't man enough for the R.
A stage 1 REVO'd Pirelli / ED30 theoretically runs more power (I'm assuming more boost!) than the R which has a D I think.
So if I was to go for OEM i'd have a D as I would assume it has been tested to higher boost levels!
Part of me would like to know how they compare (Not the part that bought the Forge DV tho)
.