Reading Reddogs informative post brings up a question for fnwa pilots, what do you guys think of going back to where you get your numbers on the fly?

I have 2 reservations about it, I had an airplane overloaded once with bags from a cxld flight in DTW, it took forever to get the numbers and find out we needed to off load bags. That wouldve been an embarrassing PA to make after push back "sorry folks, we just figured out we're overweight..." the other was a LCC 320 that taxied out and was #1 on 27R in ATL and tower cleared them for TO and they had to tell tower unable, no numbers. Tower then cleared them down to 27R and to the back of the line.

Just wondering, how was it for you guys? And I hope when we do this they have a system where they gate hold flights that probably will have issues.