I suppose being left handed, or a low rev stroker, or a no-thumb bowler is a "dumb gimmick" lol. If you aint right handed, 20 mph, and 500 rpm,.... you cant bowl! Very close minded statement. Doesnt matter how you get it to the pins, what matters is the result.
Anyway, rope, what concerns me most is you say your arm has pain after 2 games. Might be something you want to get checked out. Bowling 2 handed might take some pressure off your arm, but it may not solve your problem. I suffered from tendinitis a while back and began to dabble into 2 handed bowling but without practice, form deteriorated and had to work on my timing all over again and by that time the pain and stiffness was gone. I ended up sticking with 1 hand. As with any form, practice is key. Get out try it see what happens. As far as the pain, what helped me was the ROBBY magnetic forearm band, $50 well spent. Hope that helps.