Interesting, Herb.
I always admire your innovative thinking when it comes to tying and fishing.
Other than the potential brittleness of marabou in sharp trout teeth, I can't see any issues with that tie. Some damsel patterns I've seen out of the US use clumps of marabou in the body. Mainly tied on top of the body, rather than fully around the shank.
I've seen 'schlappen' feathers - which have a lot of marabou-like webbing in them - used for a similar effect. The 'hackles' used in tying Woolly Buggers are supposed to be softish saddle feathers, not the stiff co*k hackles often used in commercial ties.
Another option you might like to try is to wrap rabbit strips around the shank - say for the front half of the hook, with a bead in front of the rabbit 'collar' and a few turns of sparkle chenille behind the rabbit (in front of the tail).
The movement of rabbit fur in the water is magic.
You can either get side cut 'zonker' strips of various colours in shops, or as you strike me as a bloke who does his own pelts, cut sideways.