Bigmon, double set triggers are not at all hard to get used to, plus you can still use the front trigger in the normal fashion. In use, they are easily used - pull the back trigger back, then gently touch the front trigger. You can set it from a normal 3-5 lb pull, or so sensitive that looking at it cross-eyed will set it off. Hopefully, you will keep it set at a reasonable pull - 1 to 3 lb is ideal. The big thing is that you eliminate creep in the trigger pull. Nice, crisp let-off.
Several companies make them at reasonable prices. Bob Roller, here on the forum, still makes a few every year - check the items for sale or trade here on the forum. Ron Scott's are also excellent.