My wife (gawd bless her) suffers from back pain; the ride in my 1989 +4 2 seater is very hard; I love it as it corners on rails (as should be) but the old story of telling the difference between fag ends being filter tipped or plain when driven over is very true. My previous 1961 +4 had sprung upholstered bench seat back rest and float on air cushions on plywood base. I never had problems with this set up.
I am tempted to investigate new bucket seats with more upholstery/strings. Before I do, any suggestions from fellow morgan'ers/suffers would be greatly appreciated. (and no - I don't want to change wife or car!!)
