Alas...I sold the Miata seats... already... tips would have helped height issue but not the width...loved the felt? addition fix because they were slippery!. Looked at the 914 seats(replicas)...awesome... but $1,100 a seat..ouch..may have to buy some lottery tickets if can't find alternative.
Maybe the gage is too thin ...but that metal seat base from the Miata Foamectomy video looks like a great start for a "paint roller tray" fix.
Now if I can figure out how to get 1-2" more width...there are literally 40-50 "racing type" seats some that would be easy fit and possibly comfortable?
With all the Speedster kits ...finished...someone must have some recommendations?...for less than $2200...will look again at JPS..
again thanks to those helping with this...and other facets of the quest.!!!!!!