I'm having the same issue with my "new to me this season 2001 21SE".
It rarely goes on the trailer correctly....
I brought the trailer back to the dealer who set it up, and after trying to re-adjust it, they said they couldn't do anything about it.
Went to another trailer dealer to size up center bunks, but he suggested 2 rollers at the rear of the trailer to catch the keel when loading. The rollers were like $250/ea plus mounting hardware.
I know I'm being stubborn here, but don't want to drop another $600 on a brand new trailer that cost nearly $4k, including the $250 set up fee.....that didn't seem to be set up properly.
Sooooo, my question is have others used center bunks to correct this issue? It looks like I can get PT 2x6, cover it with marine/bunk carpet myself, install the hardware and spend far less.
Just wanted to see if anyone else has gone this route. I have way too much history trying to go the "economical route" to spending more $$ in the long run by not going with the more expensive option first.
Any help appreciated!!