I might start another thread for this. Long story short your belts should not be frayed, less than 5 years old, and mounted properly. You should also ALWAYS have a 5 or 6 point. I was first on scene of an accident where the girl passenger was in a 4 point and she slid out of the bottom and up onto the dash because she didnt have a crotch strap and they went ass over end.
Mounting should be with minimum grade 8 hardware, at least 1/2" hardware. You should not have a gap between the seat post and the mounting point. If there is, you should have it sleeved.
Seats, IMO, should not be suspension seats and should FIT YOU. Others can argue that bucket seats are not necessary in play dune vehicles because they are not "racing". I have had suspension seats in the past and they are comfortable. But in the case of a serious accident your spine will continue to compress further into the seat beyond where it should. Where a bucket will stop the compression. This trend of big seats like Jett Trims with the fancy trim on them is not safe in my opinion. No flack to Jett Trim, they make nice seats, but guys are putting basically couches in their cars that do not do a proper job of actually containing your body inside the seat. I sat in a few high dollar cars at the SSSS this year and you could basically slide across the seat. That is not acceptable in my opinion.
Here is a photo of my setup. Sparco EVO L that I went and sat in for correct fit. I have a race pad in my seat and my passenger seat has a "prerun" pad that is a bit softer. 2" Crow camlock harnesses mounted with pinned clips (passenger has a crotch, it just slid down in the photo). And I strap them down TIGHT. Safety first, comfort second.
View attachment 134701
I had one of these on during a crash when I was 17. The brace blew up my collarbone. Doctor said I may be a quadriplegic if I wasn't wearing it. So i'd say it worked for me. But I've heard other break a collarbone because of it when it wasn't necessary.
Sorry to derail your thread Sean.