I don't think you're going to find any original Grimm stock anywhere, without some very serious connections. It'd probabley be easier to find a cut off of somebody's maintained mom.

You ask an interesting question, as Cindy is a " stabilized selfing" of an individual named Princess- A mature seed was found (in, believe it or not, a bag- admittedly a very special bag in a very special place where there are NEVER seeds in your bag), said seed was popped, cuttings were taken and flowered- and they were special.

So Princess was bred against I don't even remember what- a JH maybe?, long time ago, stoned... to produce 50%Princess ( hereafter P)/50%Other(hereafter X).

A male from this union was used to pollinate Princess again- the seed from this gen is now 75% P/25% X.

Again, a selected male was used to pollinate a third run of seed from Princess- This one is 87.5% P/12.5% X.

And so on, and so on, until a seed generation that was genetically 99% Princess was achieved, tested, and released as Cinderella 99. Why Cinderella? I don't know. I kinda like the sound of " Princess 99".

Anyway, assuming that nobodies done anything to introduce genetic material to their version of the strain, it should remain pretty consistant.

I've run BG Cindy and the 1st gen Nirvana knock-offs- there was the inconsistancy that you'd expect in an F2 generation, but the Nirvana was real Cindy, at least in the middle of the Bell curve. I'm sure that it's been run off a couple of times by now, so I can't speak for the current batch- but I'm sure you can find what you're after in their stock. Cindy was never perfectly uniform- I saw at least two phenos, and arguably more.

The Federation stuff is pretty mold resistant, and some is fairly quick.

If you always have 12 hours of darkness, you may find that you have to fake summertime- give them an artificially long day- to get a decently sized plant before flowering. Or you could just grow a lot of small ones.

Outdoor grows with good air circulation and few long rainy periods in flower shouldn't have mold problems- They're associated with poor airflow and tissue that remains wet for extended periods.

Hope this helps.