Actually, Michael, that's exactly what I did to create them in the first place. I drew 3 circles touching in just the way I wanted and then turned them into the spheres and cylinder. Then I realized that the spheres needed to be larger. At that point I should have just started over from scratch but instead I decided to "fix" them. This led me to the situation where I realized that I didn't understand why things didn't work, hence this whole mess.

As for Rhino vs. MoI; they are similar and Rhino is so much superior to systems like AutoCAD that there is no comparison. But MoI is just so much nicer to use than Rhino that...well, I just love it. Even though one might say "If you've got Rhino, how can you justify getting MoI?" Again, ease of use and perception make all the difference.

Again, thanks for being patient. I don't know how you can answer all these questions and still work on the software. Oh yeah, no sleep...
Regards,
Mark