My dressage trainer has a client that has Jin stirrups on her saddle and she does not like them.
I have the wide stirrup bed composite ones. I like the wide ones for extra support but I routinely trail ride for 2.5-3 hours. I think the extra support helps with keeping my feet, knees and shins from getting sore. I don’t feel like they are too light if I drop them and need to pick them up again.
This is what I have. https://www.vtosaddlery.com/product/CRWTSI.htm?gclid=EAIaIQobChMI2P_riM_41wIVElgNCh2QtQLZEAQYBSABEgLz-vD_BwE
I had a pair of cheap flexi ones that broke on me after a year. My horse likes to paw in creeks. He routinely gets the stirrups wet. The bikechain that was hiding under the rubber boot rusted and broke when I was cantering while warming up for a clinic. I decided to not replace the flexi ones as I did not want to risk that again. The way the rubber covers the flexible part there is no way to routinely inspect it for rust. This may not be a problem with higher end ones (or with horses that don’t paw in water) but many of the higher end ones seem to have too much flex. These had a little bit of flex but not enough to cause instability just enough to take up some of the concussion.