Hi whiggy:

You may have something there (regarding FPLN import) about some difference between 4.6 and earlier versions (at least for me for the case of FSC). On 4.6, I was (initially) not able to import FSC created/saved FPLNs via the 4.6 FMC [FLTSIM FPLS] menu. I do not recall such problems w/ earlier versions. Of course, I have no problem on 4.6 importing FSX created FPLNs (which method I don't normally use).

However, I read somewhere on the 767 forum Mark say that when the FSC created FPLN does not import into FMC, one may re-save this FPLN w/ FSX Flightplanner (w/o moving aircraft) and then re-try the import. This now seems to work for me, but I need to (seemingly) re-save w/ a different name (e.g. 0.PLN to 00.PLN). This has anyway solved my FSC FPLN import problem.

I'm still on FSC 8.5 though (i.e. haven't moved to FSC 9). Regarding FPLN tools, I have heard good things about FSBuild 2.3, but again, you may like to hear from others before committing to that tool (if you already don't have FSBuild).

Good-luck.