After seeing the "...add 18", and round up..." thing ... the cable does obviously account for the length running through the tube at the end(s). I called the tech again and he confirmed that whatever the jacketed length is, you should +18", and it should end on a round-foot number, so I likely also have a 15' (or 16'!?). He said that the part number could be "within a few feet from the end"...and "we've been doing it since the 70's". -I didn't see a p/n using a mirror for the back, but will look again, since I didn't expect it to be too far from the helm unit... and/or I'll take the cable completely out to measure it properly. I don't want an extra foot of slack and friction added in... not to mention paying extra for every foot added. I measured the jacket-only as ~14' in the boat (could be 13'6"?) -I likely erred on the side of caution)...despite techs disapproval; he's a take no bull kinda guy lol. Using the A+B+C+6" would be more like 16' I think, as I did also measure that as a sanity check.
Too bad I put the boat back together last night; NY weather forecast looks good to roll the dice and get one last beach day in!
Good tip about using Romex for install.
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