Over the weekend I acquired my new Trek Madone, the first road bike in the stable in many years.

Here's the question. Is there any reason not to put the same saddle that I have on two of my mtbs on a road bike? The stock Bontrager WSD on the new bike is.... not working. (*** hatchet, anyone?) I pulled a specialized Ariel off one of my other bikes as a temp fix and it seems great. I expect LBS to match is as close as possible. They have saddle guarantee but they aren't a Specialized dealer. I've logged hundreds of miles of singletrack on an Ariel, is there any reason I shouldn't use the same one for road?

thx.