Have all the new updates the piston and spool update and pulled out the filter in the sfr. Before was only getting 8 bps now I can't get over 11 bps. I followed all the instructions with changing hopper settings. The cs1 works great with the r2 and the hk hopper I can get up to 12.3 bps. Iv tried my hopper on other guns and keeps up and works great... What's the next step? Really like my spire and don't want to get rid of it.