I'm not sure how strong that area of the glass is.
Centered on the salon roof as far aft as you can get is the mast. The pop top comes against the mast when it's up. You could only gain a few inches by bypassing the mast and staying under the top when it's elevated.
The aft side of the mast is about 4 inches of exposed 1/2 inch stainless bolt shank. It's just above the deck. A clevis could easily attach there. The mast mounts with this bolt and is the hinge pin for mast raising. I used to attach my vang there.
Ken
The deck is cored with plywood so should be plenty strong. Instead of a bolt for the mast hinge I use a smooth pin as it's a little quicker to set up.
http://shop.bwyachts.com/SearchResults.asp?Search=mast+pin&Submit=
I hesitate to run the jackline to the chainplate as most recomendations I've read are for them to stop short of the bow, and I don't want them holding the hatch down. This is a trailer boat and it takes me 45min to setup and launch, 1h retrieve and breakdown so the less I have to do the better. And I like having access to the hatch and if the lines aren't always setup I may not use them! If I had to unbolt the seatbelts in my car to open the trunk I'd probably drive unbelted too much!
@jssailem thanks for the link! Great article.
Another obstacle is that my boat has babystays for mast raising/lowering which will interfere with where I planned to run the lines. I wanted them to use the same forward point, but that'll hit the stays, so I may have to spread them out a bit.
I did get the cockpit jackline installed and went sailing solo on Saturday! Light winds and seas were 5' @11 seconds so very sedate. This was my first time using tethers and when I went forward I clipped around the mast. Kinda a pita but I've gotta get used to it. Didn't go to the bow, just use the jib downhaul.
It was smooth sailing for 2 hours until I decided to head back and the wind died and the fog rolled it! My 3 gallon gas tank was 2/3 full when I headed out which should have been plenty as I normally only motor from the ramp to just over the bar and back, but it took over an hour to motor back, blind as a bat using my phone's GPS to navigate! Rather spooky and the motion with the waves was uncomfortable but I saw a TON of birds on the water and survived. Definitely need to get that old fishfinder/chartplotter installed and fill the tank before heading out! It's all a learning experience I just want to learn without getting in any real trouble!
Here are some pics. My buddy was at the beach and managed to take a pic through his binoculars with his phone zoomed in!
My