8% BF is quite lean. At those levels you may want to think about more of a bulking cycle. Winny is generally used to get lean and hard. You should consider a sust/deca/d-bol cycle. As Big N suggested you should pick up at least 6 more sust amps, at your size you shouldn't run any less than 500mg/week for a minimum of 8 weeks. Again, we're not exactly sure what your looking to accomplish, but at 8% BF you do not need to be any leaner unless you're planning on competeing in the near future.

Pete