If I was to make single suggestion that I personally feel is important in finding the sound you want, it would be to go through a cut progression with every call you make. I have explained that process in prior posts, but basically it entails starting with single cuts in the primary (top) reed and trying the call before proceeding to the next cut.
A lot of calls are based on the center V-cut and are modifications to that basic design. By starting out with making only a single cut at a time and trying the call between each cut, I have found that I can generally find a cut combination that works well with just about any call I make,...and that cut combination can end up being anything from a single-angle cut all the way to the ghost cut, or the batwing,...or anything in between.
Also, always remember that very small changes in the reed cuts can make a major difference in the sound of a call. I suggest being very conservative in trimming reed cuts, reed edges, and depths of cuts when looking for that optimum sound you want in a call. ...Hope this helps a little bit...