I haven't used WLP545, but White Labs claims it's from the the Ardennes region, which is not where Huyghe is.
I did culture from a bottle of DT once and the result was great. Of course, when you step up from bottle dregs, YMMV.
I was looking at the yeast strain guide on Mr Malty ( http://www.mrmalty.com/white-labs.php ) and didn't see WLP545 so I sent an email to Kristen England asking, and the reponse I got was Huyghe. I checked the map and I see what you mean, I'm not sure what to think now.
Yeah, I don't know... White Labs already has strains sourced from most of the breweries in that region. Could be Caracole... BLAM says they have two different house strains, and given the White Labs description, the stronger one used for Nostradamus is a possibility.
I forgot to mention earlier that the Huyghe identification came with a disclaimer, which was basically that is was more of a best/educated guess rather than a positive ID. I opened a bottle of my beer last night and there is a promininent banana-like fruitiness to the aroma. It's been a while since I've had a bottle of Delirium, or Caracole, so I can't quite recall their yeast characters very well.
WY PC Canadian/Belgian strain. It's restrained with gentle apricot and lemon character. Very very nice yeast for a light colored belgian.
That does sound really good.
As for temp, I started around 68*, though the first night it crept up to 73* while I slept before I got the temp down again the next morning. After that it was a fairly constant 68*.