pretty excellent points. i was glad you didnt pick sides on the fast or slow descents. we chatted a little at oshkosh about it. im a get down fast kind of guy. 500-1000 fpm is what I look for on non precision approaches. i do not of course do this as a divebomb type of thing though. with my students the first lesson or so on IFR is learning pitch/power combos that give desired airspeeds and descent rates for various procedures. 90 knots is typically the target airspeed with various power settings to get a descent rate for an ILS, for 500 fpm, and for a non precision approach. then when over the FAF the student merely has to set the power where they know it should be, hold the airspeed and they will be pretty close, some minor corrections and they are right on.
and i sure wish you would've given that NTSB warning last fall
http://www.ntsb.gov/ntsb/brief.asp?ev_i ... 1629&key=1
final ought to be coming out soon, been nearly a year