Uses bridle and sling attached to a rod above, presumably to avoid pinching sides in.
https://www.youtube.com/watch?v=dgxodOMpWgcUses sling BETWEEN mirage drive wells.
https://www.youtube.com/watch?v=A3-AuJg1-uQIt seems a sling is friendliest to the boat since its used to being supported below but I'd be putting the sling on while in the water and hoisting out. As such I think I'll have to do four aka cross bar points to a single ring. Anybody doing this have lengths and attachments worked out? About to order a new boat and figure I can use one less project on day 1.
Regards.