Agojo - 5/06/2012 9:41 AM
I have a SeaVision 2000 Rx corrective/bifocal with purge and rose tint I wouldn’t trade for anything. To purge with 1 hand use thumb and index finger to purge with 3rd or 4th finger under the purge just to give it some support. Before I learned this i popped the purge out 10 minutes into a 70’ dive. I just kept my head horizontal to gravity and purged every minute or two, finished the dive, taking pictures, and my buddies didn’t even know I had a mask problem.