I can give it a whirl on my 270X

Hey folks, relatively new to this, but I'm trying to squeeze the most I can out of my GTX 550Ti..

Just letting it auto-tune I'm gettting low 90kh/s on scrypt coins, and .44kh/s on scrypt-jane (was hoping for > .65kh/s) I've tried changing some of the commands, but it usually ends up crashing my driver. For example, I don't know where to put the kernel command in the code  . I've noticed some are definitely  better than others. (F32x4 > F83x2) Part of the problem is I dont really understand what the commands do... I'm sure at some point in these 150+ pages this has been addressed, but, my search is to broad I appreciate any help I can get.