I ride an 8'6" thruster. It's not a china made pop-out board, it was shaped here in the US. It performs awesome in knee high mush to overhead barrels. I'm looking to buy my first board (this one was given to me from dad) and I definitely want to go shorter. My dad is pushing me to get a shortboard in the 6.8-7' range, while I wanted to get a 6'2"-ish fish or shortboard. His reasoning is that in the winter with the added wetsuit weight will hinder my surfing if I'm on a board as tall as me (I'm 6' 175 lbs). I'm in great shape and I'm not worried about not catching waves at all, he just says it's not as much fun on a shorter board in the winter.
So all this got me wanting input from you guys, why is everybody trying to go so damn short? There is post after post about people wondering how short they can go before the board becomes practically un-rideable. What are your thoughts on getting a 6'8" short-board to at least get me through the winter (maybe something shorter for next summer?)