Sorry, I've never heard of "FLACH", but that doesn't mean anything. There are several double rifles out there built by people nobody ever heard of. There are four double rifles out there that were made by me, and nobody knows me from Adam!

However, when dealing with a Shotgun conversion to double rifle, one must walk slowly, and do some real looking over of the piece! Without knowing the maker, it is hard to say, or see how this conversion was done. if it was done improperly, that thing can be a real fishhook in your eye!

The conversions done by Butch Searcy, are sound rifles, unless they have been abused. Abuse is detectable by good inspection, but method of joining of the pieces is not. For instance, the barrels of Butch's rifles are threaded in the mono-blok, and the action body was re-heat treaded, and had a third fastener added. They are strong, if not pritty, but pritty, doesn't make a rifle strong, the other things do!!