Marty I think using phrase like "more challenging" / "make scoring a bit harder" are confusing people.
Basically you find fast meters a bit too much to handle, and so you want a full Legend distance set but with a slower meter, and other other attributes then toned down to compensate. You feel this would give people a chance who do not like faster meters a chance to compete, without making the game too easy for those that are OK with a faster meter.
Things like less precision don't make it harder, just makes it less precise. We already discussed that last 10% orange / red zone where if you go into that you get less forgiveness on a ding miss. I do think the game is crying out for that, but not with a slower meter or less precision before you go in that. Less precision in itself just serves to muddy the water not allowing skill to shine.
It would be pretty easy to drop the speed of the L79 Bladez to 3.5, lengthen the 3 iron and maybe tone down a couple of other attributes to keep them from giving too much away.
Wish you well, and just possible there is room.