That's how the spikes come from the Vixen VC200L, and that is with custom thinned vanes. I can tone them down a bit, but as I said, processed this one VERY little. ALL my stacking software is giving me troubles lately - Registax will NOT work V6 on my system (V5 will, but not the best software). DSS always outputs greyscale no matter HOW I try, and MaxIM DL hates my darks/flats/biases, so end up with noisey originals. Got to read more