Kirt, I looked the boat over this weekend and think I've got it figured out. I don't want to push boat any further forward on tailer. Now, not alot of room between front of hulls and rear of my truck. This is what i'm gonna do. 1 straight 6 foot piece of angle iron - no bending required. 2 U-bolts - one on fore and aft crossbar of trailer. Slide angle iron under u-bolts. Drill 1/2 hole in the end of angle iron - my rear mast support will bolt into angle iron and be positioned behind tramp. When not in use, just loosen u-bolt and slide angle iron forward. Thanks for your advice.
Now, how do you wax your P-18. Was trying to wax this weekend and comes out beautiful on smooth surfaces - but top of hulls are textured and cannot cannot wax residue out of texture?