I recently started loosing speed with a load and
Gaining Rpms so I assumed that my prop was wearing
Down from running in the sand around wax lake .On the hub it says
12.25x10 but has no cup left. Mud buddy sent me an 11x10 . Will this prop be ok to run
Or should I send it back to get the prop that's on my motor now?

What motor do you have?

27 hp Koehler hd sport mud buddy

You can run either one. You'll actually find the 11" draws out less water in a narrow shallow ditch & you'll run better in those type spots.

If you don't have any plans for the old prop, I'll take it off your hands.

Thanks! But will I still have the same performance in deep water situations ?

Deep water, 12" is better unless you get the 11" repitched