that 39 is powered right with 700s should deff have nxt and with that boat its running merc maxs probs should be running a 6 blade herring with those drives wasnt this boat in a accident if i remember correctly

It runs with Imco extrem Outdrives(Bravo Style)5 Blade Herings
4500RPM same Speed like 5000RPM, thats bad.

when i called shrogren they said it ran high 98 100 that boat should easily hit 107+ with a 6 blade youl get a easy 5 to 6 mph gain the imco should be able to hold up with the 6 blades

Something is not set up correctly then. 5 Blade herings are fine. It should run low 100's fairly easy with tab in it. Do you know who put the motors and drives back in that boat?

5 blades are good for a 600 boat we bought new props for ours and were still playing around with them too get us in the 100 mph but the 5 blades just dont turn enough water the boat with 700s needs bigger prop

It will not make a 5-6mph difference.

Mine is not an OL but I have staggered 700hp with Bravo style SCX drives and I have no trouble running 110+ with 5 blade props.

That is not true...the difference from a 5-6 is not that huge...mid range maybe, not top end...

Dan is right, you're not seeing a 5-6mph difference on top end from a 5 to a 6...maybe midrange, but not top end...he should have no issue with the 5 blades....the stern lift from the 6...there's other factors at play here, not props...unless the pitch is totally off, if he's saying the same speed at 4500-5000...something's not right...

...something is not right.... thats what we know.Boat has 36 Herings on it.We never run 98!!! The best was 95. And believe it we are not beginners.

No,possible Shogreen know it!?