I've been shooting my Condor since November, and its consistency has been hit or miss (no pun intended).
Sometimes I get tiny little groups, sometimes not.
Tonight I tried my Beeman pellet seating tool. I somehow forgot how much better it made my FWB 124 shoot, but the light bulb went off when I saw it in my pile of odds n ends.
Using the pellet seat tool (the ball end), just a small amount of pressure is needed to spread the skirt into the breech. This increases the seal of the pellet so you dont have to waste air right off the bat. In my FWB 124 I gained around 30fps with the tool.
Tonight I tried it with the Condor, and Kodiaks made a 10 shot 1 hole group at 25yards. Velocity jumped from my usual 970 to just under 1000fps.
Shooting 42gr Eunjins, I shot 10 into a ragged button-sized group. Velocity increase was nice too, from 890 to 925ish.
My valve is unmodified, in case you were wondering.
Side note, for whatever reason my gun hates the round-nose Eunjins. Accuracy is still 2.5-3" at 25yards. Sux cuz I love the way they hit.
Anyway, if you have a pellet seat tool, use it!! I gained both power and accuracy with it.
If not, they are relatively cheap.