For moto's boat; in his signature is does not specify a V-drive. The V-drive and direct drive use different drive shaft sizes, 1" vs 1 1/8".
I would try what you have on the boat. Also you will want to know what you have on the boat before you change to anything else.
3 blade or 4 blade. pitch vs diameter. CNC machined vs cast. There are a few variables. Give the ACME or OJ or Nettle props a call.
2003 Outback, Assault EFI, (6) Polk Audio DB651s, JL Audio M6600 amp, JL Audio M1700 amp, JL Audio 10w6v2 subwoofer