Hi Philip,

Good to hear you've got it all basically worked out.

I typically setup all my model in MoI, this includes the text which I'll roughly space out to what's needed.
To give myself a ballpark figure I take my circle OD & multiply by 3.14 & that gives me a basic flat length to work from.
I've found that in the long run it's quicker & easier for me to position each letter of the text, that way I know it's exactly where I want it.
Quite often I find that the kerning used by some programs isn't that great for milling tool clearance so you'll end up readjusting stuff anyway.

Once I'm in Rhino4 with everything setup & have the FlowAlongSurface reference, I'll bring the reference back into MoI & use it to redo the text on.
If the text is to be a Boolean Difference into the cylinder, then I'll move the text down in Z to the depth I want it before taking it back into Rhino.
With everything now back in Rhino, that's when I'll do the final FlowAlongSurface to get my finished result.
I'll then bring the finished result back into MoI to finish off what's needed because I much prefer working with MoI's UI.

Writing this out, it does sound like I do a lot of messing about, but I've done it enough times that I'm reasonably quick at it now.
If a similar "FlowAlongSurface" was to become available in MoI V3, then I could obviously ditch Rhino for this process.

HTH, Colin