Honestly, I'd just go sit in a bunch of random seats and buy what you like.
We can sit here and recommend shit all day long, but every seat feels different to different people.

HOWEVER, with that said, I will say that I highly dislike Forzas; but I'm highly Partial to Recaro SRD's.
check out http://www.motorsportseats.com

 

What's your waist size?

 

Step the fuck off.

I like Jay's seats.

 

Whoa Whoa Whoa son.

 

I have corbeau fx-1 pros and love them, very comfortable.

 

33"

I like Bride seats but they're hard to come buy to "test fit" before purchase and I know most of them are very tight. It's easy to say "go try a bunch out to see what fits best" but it's another thing to track down a bunch of people with these seats and ask them to sit in their cars.

 

Especially on an island I bet.

 

For sure.

I'm also interested in Sparco Evo but I heard they're a pretty tight fit as well.

 

I see the S58, the S68, and some reclineable thing I'm not interested in. What is this F-1 spec you speak of?

 

I'm sure this is what you've been doing, but like I said just ask people with different seats if you can test it out.
Hell, I'm planning on planting my ass in copious amounts of cars this weekend to see what I like best.