There is nothing wrong with using the standard pipe coupling (non-splitting), just remember when you put them back on use a liberal helping of anti-sieze. I mean really slobber it up!
I have done this for years and have never had to hammer on one to get it off. I am sure a nice heavy grease would do the trick as well, but Permatex will probably hold up better over time.
Just like the Frank's Red Hot sauce commercial: "I put that sh#t on everything!!!"