I have a 209te with a 300xs 12 inch bobs jack plate 36 volt trolling motor with 4 d31m batteries.
I typically run a 28 pro max or a 28 bravo and i see decent numbers.
I got a 29 tempest to see what it would do since I saw great numbers on my old 193/250 combo and I figured I would get similar numbers with a 209/300 combo.
I cant even get on plane it cavitates so bad.
My bravos have different vent holes. One has 4-1&1/8 holes, another has 4-1 inch holes and 4 pvs hole all open. No cavitation issues.
This tempest revs to 6200 and will not even try to plane out.
Has anyone had this problem with a tempear on a gambler?