Now when it comes to Red/Orange/Yellow/Green filters for black and white shooting... how do SLR users stand the pain of looking through a filter when composing and shooting?

Sure it reminds you you're using black and white film, but it's a distraction when you know what to expect from the filter and just want to focus on your composition.

(Trivial point for sure, but the advantage goes to Rangefinders on this issue).