As mentioned by Goingstraightup your c/g may be off by being tail heavy, re-check the balance and set it slightly nose heavy with the the fuel tank empty.

By your discription it sounds like you pulled the plane off the ground too soon at a high angle of attack into a stall resulting in the snap roll/crash.

My advice is..

1- allow the model to build speed on the ground 50 to 100 feet take off run

2- apply elevator gently lifting off at a shallow angle of attack and climb out to a safe altitude before making the first turn.
you said that you have experience ,so I think that you should be able to handle it from there

3- also make sure that you don't have excessive elevator throw
I had a model that would snap on take-off 80% of the time due to ,too much elevator throw. I finally wised up and corrected that condition befor I destroyed the airplane!

I flew that model for many years

Good luck Roger