hey guys iv been in and out of pen spinning as just something to entertain me for a while and iv noticed im better with pens that carry out there momentum. so i am looking for pens with weighted ends such as dr.kt, guitrum's rsvp mod, and whatever else has weight at the ends. I also want pens the actually work such as retractable, because i use them in school. i can pay through pay pal. thanks All bulk pens lots are welcome as well.