Depends on what you want my man. I'm a fan of epic stacks as long as they sit right.
Measure your inseam, it's something you should know anyways. Put a book in between your legs and measure from the top of the book to your inner heel. For jeans it's advisable to go 2-4" from whatever your inseam is, depending on the amount of stacks you want and if you're soaking.
If you have a 29-30" inseam, go with 32 in jeans. 31-32" inseam, go with 34. (i.e. I have a 31" inseam and always go with 34 on jeans)
Hemming is NEVER a good idea, I don't care what anyone says.
Lol you remind me of myself a week back grizzzly, I was all over the place trying to figure out which pair of jeans I wanted to buy.
Slackers are the same as Grifters except that Slackers have more thigh room and a higher rise. Rakers are basically 510's, I believe Grifters should be between 514 & 511 but more to the 511 slim. & Slackers I would say would probably be like 520's or exactly between 514 & 511s.