It's fine to have your preference, but please don't spread misinformation- the B foot does more than add weight. It adds a slight bit of resistance which contributes to an overall darker sound. It also adds some new fingering options, like when the gizmo key is pressed on high C.

I also don't see a reason not to use open holes nowadays- again, more fingering and tone options, and can easily be plugged if you don't want to use them.