Rod holders on the boat
I use Cabela's 360 HT, had flush mount on one boat, and side/deck mount on current boat.. also have a few extensions
The 360 HT's came in a Scotty's box, so they are made for Cabela's by Scotty
edit: I also bought them in 4 packs... and currently they are on sale at Cabela's, at least right now
I have not used extensions and really can't envision why you would need them. Put some thought into spacing them out and you can get the necessary clearance with rod tilt.