I think I saw Bondo mention them last week on here somewhere. I did a search here for one but it didn't come up with anything so I was wondering where you get them at & how much they cost? I have a 1978 260 Merc I/O with 350 chevy engine. Since that gives more low end power would it also slow the boat down at idle a little bit so I can possibly troll without a kicker motor? This boat has a standard pitch prop for sea level. I forgot the number but can check it out in the morning. Thanks, HF.