Tom and Jesse,
After you hit a certian point in flying, (I have no idea when this is

) you can start to notice diffrent charactistics of diffrent blades.
Some of the blades that by buddy hates, I love!
Diffrent weights act diffrently, now the placement of the weights makes big diffrences as well. As my last post indicated, I like my Zig-Saws. Because, I like how snappy they are. They are very lightweight! Like 95 grams! yet with the weight the do have and where it is placed makes them auto extreamly well for 30 sized! Inverted and looping autos, no problem with them. I Couldn't do that with stock wood blades.
Getting into FF, you might notice how one set of blades may want to pitch up, and another set doesn't. Just alot of personal taste here. Stick with the less expensive woodies till you get into some aerobatics, then experiment. Once you start doing Auto's, you will see the bigest diffrences.
Jeff