I'm with longhair, Use the same hole in the arms, along with the holes in the scalar that are in the same groove. Appears to be using an inner and an outer hole in opposite arms. Whoops, just looked closer, slots, adjust till they are equal. Location: 26.4, -81.4
Modified Dec chart shows ~ 3.81° for delclination. And you polar elevation angle to be ~26.56 . The measurement on back of dish would be 26.56 + 3.8 = 30.36 (at Zenith) which is sat arc elevation at zenith (90 - 30.36) 59.64°.
Dishpointer puts 83W at Elevation:59.1° Which is ~3-4° from zenith. Which will "drop" the dish face slightly.
I'd decrease the angular difference between the polar axis and the dish (declination) slightly as you've got >>elevation was set to 26, (elevation plus)Declination set 30<< 4°. I'd shoot for just slightly under 4 difference between polar axis and dish.
With the dish just a smidge west of Zenith, find 83(twist mount on pole) and adjust elevation for max.
Go to western satellites and, using the actuator and twisting the mount on the pole(Azimuth adjustment) try and maximize your Q readings. DO NOT ADJUST YOUR ELEVATION. Once peaked, try further west. and do azimuth adjustment again. Once peaked on the furthest west sat, Put a mark on the mount, and transfer it to the pole. Snug up the mount slightly, don't lock it down. Check operation to the east. Should be fine, If all is well, lock it down. If not, azimuth adjustment on the east, and mark the pole with the mark on the mount, Will be two marks on pole for the one on the mount. And take a look here:
Footprints by Dish Size - Adjusting the Polar Mount for Prime Focus Antenna Let us know how it goes. Good luck.