I have watched some matches on you tube. Looks like fun and a bit of a challenge. Good to know about muzzle location with mag change. I have heard lots of people talk good and bad about the muzzle over the berm but no one gave any kind of angle in regards to what's too high.
I would be shooting a stock m&p 2.0 compact
I would be shooting a stock m&p 2.0 compact