I've currently got some knock-off RSR style buckets but I have found that, now that I have made some brackets to tilt them to a more comfortable angle, the wide, tall bolsters interfere with gearshift operation, taking away some pleasure from the twisty backroads drives this car is for (I'm dialing back the racecar a bit). I also find that if I want to put my arms down the bolsters force my shoulders forward (the seat is too narrow up top, just about right in the hips though). That and a few quality issues with them mean that I'm considering some new seats from GTS Classics, but I would like to be able to sit in them before purchasing. I'm hoping someone nearby to Ventura County or Los Angeles might have the following seats I'm interested in and allow me to try one out.
The models I'm interested in are:
Le Mans (I like that it's the lightest).
Hockenheim (looks more supportive than the Le Mans but otherwise similar).
ST (I think this one will have too much bolstering like my current ones, but it's hard to tell just from photos).
Here's a picture of what I have currently for the obligatory photo content: