Well, I've only pulled the trigger twice on RGB imaging so far, so it'd be silly to advise you in this area. I will say this though. My DBK one shot will still be employed the majority of the time
Yes mate, I was talking magnification, although we don't talk mag in this game as such. It's focal length or focal ratio. I knew what ya meant though! I'm no pedant

Yeah, I'm not sure how far you could go with your setup. A cheap(er) way is an extension tube though, to find out
All the best