I cannot believe we are discussing speed in this thread when the crux of it is to show ways to use the find() function. But I digress. And I'm with just about everyone else here that speed is not going to suffer in any way. True they are not the same thing in the purest sense...but in the end the difference is not enough to cause issues.
Well, I wasn't trying to imply they are the same thing, just they basically translate to the same thing, and therefore, the explicit form suffers no speed penalty.