Being a long time back problem owner, I had wooden wedges installed under drivers seat as one of the first modifications on my 2009 Roadster, this to prevent sliding down the seat. Also have the lumbar inflatable support from https://www.wolfperformance.co.uk/
Very happy With these mods.
Cheers,
Bert


2025 Plus Six - 1909
2009 Roadster
1983 4/4 4str
Board member Morgan Sports Car Club Holland ('21)