^ Nah man, if you've ever worn a pair of Uniqlo jeans, you know that even though S-001 are slim straight they fit similarly to Levi's 511's. Trust me you want a pair of S-002's. S-001's are going to be incredibly skinny on you if you are only looking for something slightly slimmer to 501's.
^ You want to size down on the Straight fit Made In Japan's. All Uniqlo denim has 1% spandex, so you want to size down 1 to accomidate for the stretching. With the MIJ's, there is no S-001 or S-002. There's Straight and Slim Straight.
Im looking to buy some new denim and was wondering what kind of fit you'd recommend to someone whos 5'8 and 165 pounds im looking for a slim fit but im not all that skinny obviously i usually wear a size 32-33 in jeans