[Bushwacker]

John - the Hermco bracket is completely out of the water when you're on plane, so doesn't add any drag. It probably reduces drag because you can mount the motor higher. Of course the flotation also goes away on plane. Like I said earlier, the boat knows you've changed the weight distribution, so beware of hanging a heavy motor on a bracket. I didn't notice any porpoising until I raised the motor 2" from where Don Herman originally mounted it, and I considered that a good trade for the extra performance I got. Even now it doesn't porpoise until motor is trimmed out to about 60-65% of max (where 0% is full down), so not a big deal. This may be the result of the SeaFari being better balanced than a cc (more weight forward) to begin with.