What prop were you running on the G26. APC or somthing else. The only numbers I have to go by on the G26 are Horizons number of 8900 on an APC 16x8. I have had a new Toro at 8550 on that prop. It would be interesting to see what it does on the prop you used. I never like the numbers given by the mfg. I like to get real world numbers. Also have you tried an APC 16x8. If it is at 8700 with a 17x8 it may even go better than 8900. It is just nice to compare.