Is there a way to "game force" with the following hand?
I don't like 1C, because good players preempt strongly against it (and bad players preempt badly against it.  With this hand, it doesn't matter), and surely the opponents have lots of one of the majors.  I can see showing my suit for the first time at the 5 level, not knowing anything other than partner has some cards.  1C-X (majors)-1NT (GF BAL)-4S; your call?
After 1D-X (or 1M, or 2D), you'll get some more useful information from partner, and when they bid 4S, at least now when you bid 5D you're showing an incredibly offensive hand with limited defence and a self-suffcient suit.  1D-2D-X (interested in penalizing at least one major)-4S; 5D (not waiting to see if partner can double 4S) and you're much farther ahead.  And when they bid 5S, partner can make the decision with much more confidence than in the strong club auction.
Precision handles distributional hands very nicely; it's actually one of the strengths of the system that you can show a &quot;strong, but not in high cards&quot; hand much more easily than in standard.  So the only concern I have with opening 1D is that I'll get passed in it, and with 28 HCP out there, it's a pretty small concern.
Sure, if it goes 1C-p-1S-p, you're going to have all the time in the world to gadget out the cards you need to know about.  Call me a pessimist, but that won't happen.
Okay, looked at the story and they were able to introduce the diamonds at the 4 level.  Nice.  And the key to the hand - if it had gone 4H-5D-5H instead, are they cue-ing 6C?  Maybe - those names, anyway; but it's a lot less comfortable.  I also notice that we are at favourable - that means 7H can only go -6 to make a profit (and -4 if they want to beat the ones in 6).  Not surprised they didn't find it.