I have a 17 Eyra, Mercury 250 Pro XS. I run a 27p Bravo XS in the winter and a 26p Bravo XS in the summer here in SE Texas. I’ve run the Fury 4 25p and 26p also, prefer the Bravo. I recently installed lithium’s for my 36v trolling motor and most likely will run the 27p year round now. You’ll lose top speed but I’m happy with my hole shot, great mid range, and it’s great in rough water. I’d like to try a 28p Bravo in the winter months now that I have lithium’s. I fished a tournament Saturday and temp was in the 60’s, both fuel tanks 3/4 full, livewells full, holeshot was very good. Lithium’s helped my hole shot a lot. My boat is heavy, dual power poles, dual console, stereo, 36v Ultrex, Mega 360, way too much tackle.
As far as the 26p vs. 27p Bravo XS, I can’t tell a huge difference between the two. I’m not sure where you’re located but if you’re around Houston message me and you are welcome to try one of the props. I ran a tuned 28p Bravo XS for a short period, as in less than a day, before I ruined it on a stump a couple of years ago. It was fairly hot outside, in the low 80’s, so the hole shot was terrible but I had bought it for the winter months only. Mid range was great and top end appeared decent but overall too big for most applications I think. I’d love to try it now in the cooler months with lithium’s.