Getting weird asymmetrical comas on stars

I recently received my new carbonstar 200 and installed a mirror mask before collimating it with a cheshire collimator and heading out to take some images. I'm seeing these odd comas radiating outwards around the periphery of the image. I have a coma corrector installed. I'm wondering if I tightened the mirror clips too much, or if I messed up my collimation. Advice would be appreciated. Thanks!