l am comfortable with small boards l have a 4'11'' INT soft top
l am 5 foot 10 inches tall and weigh about 110 - 120 pounds
i am looking at the 5'8'' firewire (Flexfire) and the 5'11'' firewire (taj)
l also have a 5'10'' quad fin firewire
l tryed a 5'7'' teqoph surfboard and l was pumping really fast and it felt like l could do anything with the board, l just wanna know how big l should get my next board.

The right board for you would be a large. You would have enough space on your board to stand and surf.

Although l am sure u will get lots of ''advice'' the real best answer is to go to a good local surf shop & discuss ur skill level, ur size & local wave conditions with the folks there. they will give u much better info than ANYBODY out here in cyberspace. You should really think about buying a decent board, & avoiding popouts, & boards made in sweat shops in China (that icludes Firewire), unless that is just all u can afford. After 42 years of surfing, l still get my surfboard buying advice at good local shops in the places where l surf.

http://mckevlins.com/nopopstory.htm
Boards made in Chinese sweatshops:
http://bp3.blogger.com/_hPACOtZKKko/RkSTwhvv9kI/AAAAAAAAAfg/QMqBFAtXzQ4/s1600-h/chinaboards.jpg

Well, since you already own a firewire, l was gonna warn you and say that firewire is you def. do not want to scale down on because they are just so lightweight. Honestly, l am really impressed with the 5'11 taj model, and their quad also looks good. I'd also suggest looking into getting a 5'11 Stretch Quad w/ bat tail.