Those last 2 post are good advice. Always better to have daylight, and good is better, when entering a new, strange, harbor, marina or channel route.
Another trick, even with good GPS, is to induce a known error. If you are crossing to a landing where you are entering a channel that might be hard to find, aim your crossing destination to the right, (starboard) by a mile or so, then when you have good visualization of the approaching coast, turn to parallel it and find your indentation or channel knowing it will be a turn to stbd, and being sure you will find it in front of you, not maybe "should have turned the other way". I know GPS makes that error hard to happen, but this is one I use crossing Juan de Fuca into Cattle Pass, because I cannot see the entrance from this side. I put my marker about a mile to the west, and half a mile off shore, on an incoming tide, to avoid some of the rip, and get a good visual on the lighthouse.
Curious what your bottom growth looks like, as it may have some affect on your planning ability too. Also (and you probably are already doing this, moving weight aft to get up on plane.
Dolefin? How about permatrim? And I think you have trim tabs already.
Harvey
SleepyC :moon
