My first double was and is a 28 gauge Parker with double triggers. Being somewhat ambidextrous, I shoot shotguns left handed and bolt actions right handed (because there weren't any left handed rifles when I was young). My technique with the Parker was and is to pull the rear trigger first and let the recoil "assit" in moving my finger to the front trigger. When I got my 470 I just used the same approach and it seems to work very well. But I'm pretty new to big bore double shooting and will try the front trigger method and see how it works.