One perfect example of players killing themselves via club length is clubs made in Japan. For ages they were 1" longer than USA club standards as the popular belief was that since they were shorter in stature the needed longer clubs to generate the same biff.
Of course the longer a club is the harder it is to hit the sweet spot. That is true for tall or small
The flying wedge fit is something that I do down here as it does actually make sense to players to be best fitted for impact rather than 'standard address'.
Of coures comfort for hieght comes into it but we need to be in that power strike zone the best way possible. I have dealth with international cricket fast bowles standing 6'8" and yet their clubs were not that much longer than standard in the end.
Get those impact decals working and tinker with length and watch the balls length. It does not take a lot of time and effort to work out a dymanic length for best average fitting.