The OSH arrival method. Mass arrivals....
mixing RV with cessna's and cubs could be improved.
An RV corridor might help the landing phase would be the same. It would seem that consistent speeds and like performance under 130kts could improve the entry. Stacking a Cirrus behind a Cub then an RV is inviting conflict.
Regardless of the answer for RV's it still seems like there is opportunity for improvement rather than one long line.
From a volunteer point-of-view, mass arrivals can be a PITA. This year there were 6 groups but, as stated the RV's didn't make their slot due to weather. The Cirrus group is odd in that their numbers are small and most come in for the mass arrival, then leave.
The Bonanzas and Mooneys are well-organized and do well but there a lot of them and always go into the same area: North 40 but only as they come in: no reserved spots. Pipers this year were not bad as there weren't many of them. Cessnas always take forever as they are usually strung out in groups. Mass arrivals need both FAA and Air Boss approval and don't just "happen". The RV "mass arrival" was the formation group this year which is a well-organized group and relatively small in number. This was arranged this year due to the 50th anniversary of Vans. It may not happen again.
Sorting out different airplanes to fall into line would be impossible. It is a take what you get variety. A Cirrus behind a Cub would be a problem as they stall at such a higher speed and the Cirrus should probably be in the 135 elevation. If an RV is not comfortable behind a Cub or a Cessna, perhaps a little slow flight practice would be advisable. Van himself has said to do slow flight practice during EVERY flight. 90 mph in an RV should be a perfectly comfortable speed to fly. Would a notch of flaps help? Sure as that is below our flap speed. There will likely never be a type-specific corridor as, again, that would be impossible to organize and then fit in with everything else.
I have been in the Fisk Arrival in both the J-3 and SuzieQ at the 90 mph altitude and was more comfortable in the -4 due to visibility. The freaky thing is people sneaking into line from ANY where. Sometimes controllers will see them and make them go to the back of the line. It is getting more populated due to popularity of the event and this year all areas set records.
I have flown formation with a 65 horse J-3 Cub who was doing everything he could to get me to break. Didn't happen. Was I hyper-aware of what my airplane was telling me? Oh, yeah! But I also practice slow flight. In both airplanes. If your landings are starting to suck, slow flight practice can bring them back into line. That is from The Boss himself. RVs are probably one of the best airplanes to be "in line" as they have great visibility and great slow-flight performers.
Momex underwear in place......