I might be off hear but acording to the Octura prop chart it is a Y531 and a plastic prop. The X430 is a good little prop but it depands on the motor in the boat. Sorry I know little about your boats wish I could help more. I did not see another prop was there a third?
Randy
For ABS, Fiberglass, Carbon hulls and Stainless hardware BBY Racing
This pretty much explains it. I would stay with the X430 to start with.
Different types of Octura props
12 are low lift ideal for submerged drive
X4 are medium lift general purpose props
M4 are like X4 but with the tongues removed to unload the prop
Y are like X series but have 10% more pitch
X5 are general all purpose med lift prop
X6 are higher lift than X4 and suitable for surface/semi surface use
14 are moderatley high lift for hydros and deep V's
16 are high lift props for riggers and hydro's
17 are the highest lift prop for riggers and outboards
P7 are similar to 17 series but more rake and less lifti
19 are high lift for riggers and hydro's
V9 are moderate lift suitable for riggers, hydros and SAW racing
20 are moderatley high lift suitable for riggers
21 are high lift for riggers and hydro's 22 are high lift surface drive only good straight line speed
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