P35 is almost the same as the bullshark. Both have mid instead of rear cocking. The P35X does too but adds a longer barrel, a wood stock, and a 60cc plenum. If you want a 30-40 fpe 177 I'd get the P35X (or Remington Spirit X) but for a 15-20 fpe gun the P15, P35, or Bullshark will work great. I have a p35-177 and it's killed 20 squirrels for me so far.
