Not really looking for a tie down system. More of specifically how to secure the machines. Same machine, same place so mounts can be permanent. Fast and easy but secure enough for 800 lb machine on a nasty rocky back road.
Spent some time last night on my 2004 Cobra. The subwoofer box was never really secured well, and gets banged around in the trunk. Knocks the trim off the front. Awhile ago I had changed the strap orientation to diagonal to try to reduce side-to-side movement, but not successfully. Time for v2.0. To combat the side movement I added some 'wings' on the sides of the box that hook into the back seat opening. Needed some spacers to fit properly. The other fix was to re-do the nylon straps and buckles. Made a short loop on box to hold a backpack style buckle, and a 2nd loop on the outer LATCH points. Now I can really snug the straps down. See how it works after some aggressive driving. Also finished cleaning the car, the inside, jams. I live in a dusty environment and it blankets the interior. Next up is an oil change, it's at 4.4k miles which is about my threshold. Ordered M1 oil and filter.
Trying to catch up on life in general before I tear into the 76 F100 front suspension. Been doing a small amount of yard work each day, but it's over 100 even well after dark.