I'd be interested in two things (well, quite a few, but these two especially): any change in FF4b8, and a link to your code or (better) a bug report on the perf

I'd be interested in two things (well, quite a few, but these two especially): any change in FF4b8, and a link to your code or (better) a bug report on the performance issue; we'll get to it after FF4 if it's not already better.