Hmm ... good question ... problem would be that the OB is a pinned trigger and the roller trigger is a leaf trigger. I prefer a leaf trigger as you can add and remove mini washers to get the absolute perfect shaft fit. Perfect shaft fit to track means the shaft will not jump down to the track and cause shaft instability. Maybe better is just to use the new OB trigger with back side line release.
As for Seal, yeah he is just dishonest and you are not the first to tell me that. I know several guys who also thought they were getting something very powerful. His 9m test was total BS. In my testing the gun had less power than a 2 banded classic gun of the same size ... but shot much lower. And you have Jon (who has never ever seen or tried a Seal gun) perpetuating and encouraging the lies. Sorry you had to go through that and wish I had put out my test earlier. Best of luck!