Been doing a little grilling and a little smoking lately.
The best tip I have is for doing a fairly complicated recipe for "making Pastrami close to Katz's famous deli" contained in the link below.
I followed the recipe with a typical bag of supermarket corned beef brisket, nothing fancy, and would recommend following the procedure for soaking the brine off the meat as the recipe states. That takes a while as does the whole process. In fact, under "preparation time" it just says "Oy!"
I thought it was possibly the best Pastrami I've ever tasted. Mine was a little too red in the center for an A+, but everything else was as good as advertised and I thought it was fun to try something outside the norm.
If you love a good Pastrami then you might want to consider giving this a shot. I'd also recommend cooking at least two briskets and maybe more because for all that prep time you don't want it gone in one meal. It's almost as easy to make 3 as it is 1.
I smoked it using hickory, grilled it briefly to set the crust, chilled it and then steamed it prior to serving (on marble rye, with swiss cheese, russian and sauerkraut). I started with a 4 pound brisket and when all was said and done it only made about 4 very large sandwiches.
As much as a pain in the ass as this project was, it was well worth it because the smoky, peppery Pastrami flavor was that tender and good. I can't wait to do it again because I'm craving it badly.
http://amazingribs.com/recipes/beef/close_to_katzs_home_made_pastrami.html