Nice Bob. Simple solution. I will do the same thing. No sense carrying the spare nylon bolt unless I'm going to carry wrenches to change it on the water. (or do you keep the spare bolt with the wrenches someplace else?)Thanks.
My 2012 TI came with split rings through holes in the spare bolts, so that when I broke an original one (with the nut on), all I had to do was insert the spare bolt and then attach the ring after keeping the end of the ring open with just about anything. Even though I still had the broken part of the bolt containing the nut, I didn't use it as I couldn't easily get the nut off.
2012 Tandem Island "SIC EM"www.scenefromabove.com.au