This may not be the best approach. With proper aeration and appropriate pitch rates, beer wort should start fermenting within the first 24 hours. Mead musts often (probably more like always) benefit from some nutrient and oxygen additions during the first 24-72 hours. Properly rehydrated dry yeasts that we here usually use for meads will show signs of fermentation in as little as a few hours, and this point is a very common spot to add nutrients to help them build strong cell walls. Mead musts are very low in nutrients and you'll see quicker, healthier fermentations by properly managing them during the first few days.
I hear ya', Medsen but in time I learned the quirks of my preferred yeast. I use exclusively Wyeast Liquid Yeast "smack packs". A bit pricey but well worth the extra $$$. I have a heated cabinet in which I incubate my yeast packs and it stays at a constant 70F. Whenever I break (or smack) a pack of yeast and it blows up within a few hours, the ferment in the wort starts within a couple of hours. But on occasion I get a pack that just won't swell up even after twenty-four hours. Those are the batches that usually take a couple of days to get started. I just learned the nature of the beast that I was using and stopped worrying. I've yet to lose one single batch to stuck fermentation or lack of fermentation. Of course, I'm speaking about beer experiences here. But on my first mead, I broke open a Wyeast Champagne Yeast pack and it swole up like a football and I knew that it would take off like a rocket. And it did.