Ed Wischmeyer wrote:

My hypothesis is that the sloppy spring links let you get a bunch of
rudder deflection before you get much tailwheel deflection, and this
is good at, say, 40MPH and above.

This is interesting. One of the things my inspector asked
me to fix was the slop in the tailwheel springs. I got
almost all of it out, and the airplane handles very well
on the ground, but I haven't had it up to 40 mph yet. I've
flown two RV's with loose springs and I thought mine handled
better at low speed, but that may just be wishful thinking.
I've seen lots of recommendations from RV people to make sure
there's at least a little slack in the springs, and I don't
recall ever seeing any RV-flyer recommend NO slack.

My head hurts :-)

Dave 'still ground-bound' Hyde