Tom,
I read a thread back last year about this time where the folks discussed using the bedlinder stuff as compaired to the undercoating.
A wise man said that the bedliner stuff held dirt and I think he was right. I had a S-10 with a sprayed in liner and it was a pain to keep clean. Of course it could have been the type of liner. I am pretty sure mine was a rino. I remember some one saying that water can get trapped behind that stuff as well. I can't find that thread now..
At any rate, you may have already made you mind up. Here is the Thread if your intrested..
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=4;t=003968#000003
I think the undercoating stuff will do the same thing
