Take your time and you get no wrinkles at all, marine vinyl stretches more one way than the other, getting the stretch directional on your seat is key to getting the job done perfectly.I have a concern about using a piece of marine vinyl. My pre-cut seat cover featured a sewed-on portion for the rear of the seat that accommodates the sharp angle at the rear of the seat. I think if you just use a flat piece of vinyl, you are going to get wrinkles at the rear of the seat.
Also, as SamUK said, the staples from my manual stapler did not go in all the way. I used a punch and hammer to finish them. Not a big deal.
That's a good price for a replacement cover actually Jeep. Yes, exactly that, just work your way front to back. Put a FEW staples in as you go, once your done take a look then fill in the gaps of your happy with the outcome. Try not to over stretch the vinyl too, it's very easy to get 3/4 of the way through the job and realise you pulled a bit at the front to tight!I use shoe goo to fix small holes. Won't hold up for more than about 6 months, but then you just slap some more shoe goo on there.
I just ordered a $25 cover on ebay for a 420 seat I have that needs recovering. So staple front and rear in place first, THEN stretch the sides out and staple them down?