My brother and Mom have a hard time getting my boat on the trailer. This McKee has a big smiley face bow so once it is upward on the trailer you can't see over it. They tend to miss the front roller to one side or the other. My brother can't drive yet and my Mom is bad at backing the trailer or judging how far to submerge it. So, I found this ARK thing that aligns the boat on the trailer. You can adjust the point at which it contacts boat and it keeps it straight so a light power load or a short hand crank should bring the boat on straight. Does anyone know of this system or something else like it or have other suggestions? This would seem to solve the problem if it works like it says.

A link to what you are talking about would help readers. If you are talking about the item in this youtube below, it looks interesting, might work. However, around here, our trailers use bunks, bunk boards instead of rollers. A concern would be if somebody is driving the vehicle that does not have a lot of experience, do NOT let them unhook the boat at the bow prior to launch like we do on trailers using bunks, because if they do, the boat could wind up on the concrete. Then you have an embarrassing mess and I dunno how you'd get it back on, I suppose you'd have to hire a crane to put it back on, lol.

https://www.youtube.com/watch?v=9L1pCbV4zcw

Yes that's it....