I've run up on slow movers (in the this case it was some 182 who seemed unclear on the concept and was bopping along at 70). Simple solution if you can't slow down or S-turn behind him, take a left turn and go back to Ripon. Fortunately for me after I bailed I could see there was nobody behind me so I just kind of made a nice 360 and reentered. I still caught up with the clown before I got to 36.

I think the Fisk guys do an OK once you get there, they'll put the segregate the slow mover from the rest of the traffic.

Other than clogging up the Ripon->Fisk transition, it shouldn't be a problem. People need to have their head on a swivel on the Ripon convergence and closure rate isn't a problem...

Ideally, they should have a lower transition altitude for those who can't maintain 90 like they have the high one for those who can't get down to 90.

90 is an uncomfortable speed in the Navion. It's faster than my gear down speed (but they want the gear down too).