STR = you dont have to max it out to 300. Try divisible by 10.
AGI/DEX = 195 aspd is enough
VIT = 230-240k hp is good
Gears
Middle = Use emp or LHZ for better dmg
Weapon = your card combo is good, but you need second weapon for switching. Most people nowadays wear skoll card. If you notice that a player is wearing skoll card, switch your weapon to non-thana weapon ( tg tg mao mao, tg tg skel vr, tg tg mao vr)
Thats my comment on your SG. You can follow it or ignore it. Thats up to you :)