Hi Greg, I ordered the OpenWheeler Racing and Flight Sim Seat from Amazon. (I tried to post a link but it wouldn’t let me).
It’s very comfortable and the adjustable rails line up with the holes on the H3, however, you will have to use smaller bolts. I used (4) 6-1.00 x 40 hex bolts with lock washers and 6-1.00 nuts, available from any hardware store.
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