I also asked these questions here myself:
http://www.crappie.com/crappie/off-t...seat-question/
Forget about all the other options. There is only one boat seat to consider and it is the millennium seats. They are the only one that I can set in for several hours with no problems. I weigh 280 passed had back surgeries and double hip replacement and i am so glad they make this seat. To get the best deal contact E-Z Poleholder tell him you are a crappie.com member. call 601-750-3519
SpyderLok E-Z POLE HOLDER PRODUCTS