Another Prop Quandry-I/O Alpha

[oldfielder]

With a rash of recent fuel problems (fixed now, hopefully-fingers crossed-ethanol sucks), I've been thinking about my prop. Nice non-sequitor, I know.
I'm running a 17 Quicksilver SS prop with my 250 hp Alpha setup. I'm coming in just below the bottom of my rpm WOT-the suggested range is 4400-4800-I'm getting about 4300 when everything is right.
I'm very happy with the feel of the boat-jumps right on plane with the right throttle, slices through chop at 4000 rpm when I need her to, and cruises nicely at about 3200 rpm.
So, should I worry about straining my engine too much with this 17 degree prop and start experimenting, or should I leave well enough alone?
Thanks
OF