I try to avoid dropping to a knee during any takedown attempt because I don't feel that's appropriate to do on a hard surface (in a streetfight situation or whatever, I don't want to develop habits that will mess me up in "the real world") so I shy away from it - despite the fact that my wrestling may suffer as a result.
I have a similar mindset with my grappling, I tend to avoid the more fancy stuff that might give me the edge in competition (like inverted stuff, DLR etc.) because I like to focus on things that are practical in all situations, not just friendly sporting occasions. Yes, I would probably be a better grappler if I included these concepts, but I'm just too much of a "realism at all times" type of guy.