Reading Jetty Rockers experiance and adding my experience--I would say a 13 3/8" by 15" stainless Yamaha SSW prop would allow you to get up on plan quickly and haold the plain with a load.
If you have a good prop shop or dealer they will let you try different props before you buy--as long as you do not hit anything for no charge.
Good luck--this is a never ending question we all have--can we improve our performance with a different prop.
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 88 V-20
200 G2
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