Tips to make VS3 Shoot straighter?

[smaggs]

Hello all,

I recently got a VS3 as a backup marker. Its all stock. I played the other day and the damn thing doesnt shoot very straight at all. My paint seems to curve a lot. I have tried setting the FPS in ranges 250-300 but still doesnt seem to help much. I just order an adapter for cocker barrel so i can use my 2k STO barrel on it. Has anyone tried this on their spyder? Also what else can I do to make the VS3 shoot straighter?