If you've tried it and liked it, roll on big mayne! I won't laugh.... promise.
Just don't promulgate the myth that it is worf a shit in comparison to the real shtuff.
Personally, I wouldn't invest $$ into a decent system, and then throw on a few pennies worth of roofer's crap and pretend that its all good... nor would I apply anything that I couldn't remove at will.
That is why I got the full worx from Don at SDS.... I'll never have to "re-do" anything, and if I get into an accident and have to have body work done, I'm not looking at hours and hours of removal time.