Albert R. Gonzalez

If we were to split into two types of pistons the old ones would become BUD pistons if they kept the same block ID

Here's "Jeb"(seamless and flush 2-wide) door that doesn't use quasiconnectivity to function.
It's 4 blocks larger to the side and 2 underneath because you can't power the bottom row from the top.
Not a huge size difference.

http://imgur.com/a/7J7bP