I haven't heard Donscorpio Bass Colors but you should definetely try Pistons. They are my favorite iem after IM50s. It has more bass and treble than IM50s for sure. The only area IM50 excels is the vocal capability which is much more natural and upfront on IM50s. Mids are laid back on Pistons but not overly so.
Sorry. I don't want to just try them. I want to know how they compare directly to the Bass Colours to see if they will have what I'm looking for.
But I think you should definitely try the Bass Colours. They are the best bass emphasized IEMs (and better than some headphones) I have ever heard to suit my tastes. They different from other phones because the center frequency for the boost is lower down near/in the sub bass region, no upper bass emphasis, no mid-bass bleed, and the mids are not really recessed much. So if you listen to classic rock that doesn't dig deep (99% doesn't), you might not even notice that the bass is there. But put on some EDM, and POW!