I have a Mystere 6.0 and think it's tramp design is the best I've seen.
The forward part of the tramp has a 3/8" (best guess) bolt rope that easily slides along a slot in the fore beam.
The sides of the tramp have a very small boltrope that slides through a narrow track along the topside of the hulls. This is best done with 2 people, but one person can do it by shimmying each side a couple of inches at a time.
The rear of the tramp has a sleeve to accomodate an alimunum pole (1/2" perhaps?) tht is laced to the ream beam at about 8 points. To tighten the tramp, all I have to do is pull the slack through the 8 points along the rear bean and re-secure it. It takes all of 15 seconds.
The tramp is also made of two pieces sewed together so that the stichthing is in a diagonal pattern (relative to the boat). This has the affect of tightening the tramp along the diagonal axis, spreading the tension evenly throughout.
There are a lot of design features on my Mystere that I am not fond of . . . but they got this one right.