Installed the GHP 10 and the 2 liter pump a few weeks ago and couldnt be happier. DIY install only took about 5 hours, could take more or less depending on your skill level and how accessible everything is on your boat. Only complaint I have is that the autotune feature is way too sensitive, so after going through the autotune the boat would not track correctly offshore. Had to manually decrease the gains in order to get it to steer in any kind of seas. Since then it has worked beautifully. Tied it into my Garmin 4212 and 4208 GPS's, very nice feature to have. Shadow drive is an awesome idea, whoever thought of that is a genius. other AP's i have used required you to take it out of AP to steer, or the pump would be constantly fighting you. I am very pleased with this purchase. Not to mention that buying it from Hodges saved me a TON of money.
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