Hi Diego,
SGP can struggle with globulars, I had the same issue with the colour frames for my NGC104
http://www.iceinspace.com.au/forum/s...d.php?t=169984
which is why mine is Lum only.
I think there is some info re:globulars on the SGP Forum. I am going to chase it up when I get the time.
Good job, by the way anyway. Love the globs!
Cheers!