I cut tonight. 4" seemed to high so I backed it down to 3 1/2. Seemed like a good healthy length. I don't think it will grow faster, but will it start looking like it needs cut sooner than 7 or 8 days. It was 8 days since my last mowing. So, I'm going to try to go 8 days again after this cut.
I'll let you know the outcome next Thursday or Friday.
Opps, just noticing I did not follow up on my results. I have found my yard looks healthier and I do not have to mow any sooner cutting it higher than previous years.
I have cut at 4 1/4 inches for the past 4 or 5 cuts and I like the results. The areas where it would clump are no longer an issue (places where the dogs fertilize grow thicker and used to clump if cut the same height as the rest of the yard).
I see no downside to cutting approx 4 inches instead of 3. (4 1/4 is an easier setting to get the cotter pin through than the 4 inche setting, that is the only reason I'm at 4 1/4 )