Stock bridge. A profab Shorty is my next purchase. I didn't strap the bridge. I'm really thinking it might be the bridge.
Told a lie it seems. The y bridge was blown out and gaskets stretched too much to get them to reseat. Ordered some silicone o rings. 236. From what I've read those will work I'll try strapping the elbow this time. That was my bad for sure. Spent an hour trying to get the thing in with the old rings but it finally ripped one.