Been meaning to do mine for.....years. Decided to bite the bullet today. Seat out no problem, grommet screw & trim off no problem, changed seat height to lowest rear, middle front (the passenger side has been like that since I bought & driver side was set to highest rear & highest front). Right then, reassembly should be the easy bit.....this is where I hit a problem.
With the lowered seat position, the gap between the seat cover & part of the tilt componentry was significantly smaller & I could not for the life of me get the seat trim back on. After many, many attempts & a lot of swearing, I gave up & called a coach trimmer (one of the last genuine & quality coach trimmers in Scotland) who happens to stay nearby. He got it back on whilst I nipped back to the house for the trim bolts I'd accidentally left there - 'tricks of the trade' he said so I have no idea how he managed it. Ah well, seating position much better now & should never need adjusted again!