I've talked to the guys at Finneys. They directed me to Kachina powerboats, their new 34 Matrix comes with a removable windscreen. I've never call at the right time to catch the right guy.
I like flip up or removable. I like to be able to get up on the deck with out banging my shins up on something.
I see what you mean about them being wide enogh. I'll keep that in mind.