look if you can try an regular black stainless steel yamaha 21 pitch prop
slip with take off (cleaver style blades straight edges)
this prop don`t have much lift
no cupping and no ventilation
if you are looking for better fuel economy buy an yamaha pro prop 21 or 23 pitch
this props have lots bow lift and good cruising speeds
good thing you don`t need much engine trim too keep the bow up
less friction
look her for all original yamaha props that will fit your engine
http://www.yamaha-motor.com/accessor...529/All/1.aspx
if you think the yamaha props are too expensive
you can try some aftemarket props like ballistic or rapture
rapture 21 pitch is an quiet good prop
with vent holes for good acceleration
cupped for more speed
decent bowlift
ballistic is more bowlift
less acceleration
little more speed
look here
http://www.miwheel.com/
nobady knows what you need .you need too try before you buy
if you can !
but a good prop will give much more performance and economie and better handeling too your boat
you have the k prop that is almost the same blade designe as the black stainless propellor
if your boat is doing good now and don`t need the extra lift buy these prop
if you have too trim your engine high too go faster then buy the yamaha pro prop
al these things are based upon my expirience
i hope you can do something with this
greetings menno from the netherlands
sorry for bad english
