300 ZUKE Owners - AV Plate running Height and Prop

[GameOnSalmon]

Just ran my new to me sceptre with a 300 zuke and bracket. Does anyone have AV plate measurements from Bottom of Keel? Even it its transom mounted. I only have 2.5 inches of movement on the Engine Holes. Trying to decide if that's going to be enough or if i should just stuff on the 4" jack plate now and be done.

Total PIA to move the engine up.... and once its close and i put on a Merc Rev 4 prop it will probably need to go up again... Let's just say my AV plate is Buried.

I know these seacrafts like to be a couple inches high as it is.... setback is 30 inches on a 30 inch shaft motor. Right now AV Plate is only 3.8 Inches above the bottom.... and I am not sure 2.5 is going to be enough. I thought i read where last year where someone was almost 7 inches up...?

Any help and or measurements Greatly Appreciated....

Thanks Robert