For what it's worth:
I had the update kit installed on my 08 standard because it would pop out of second gear during hard acceleration.
(When the bike was new I waited till after the 500 mile break in to stomp on it and the pop out happened the very first time I opened her up)
The tech that did the work told me the fix was to reduce the number of engagement dogs for 2nd gear by half.
After the install the 2nd gear pop out immediately stopped happening.
However, I got something new: drive line slack at slow speed in 1st through 3rd; the bike jerks when rolling on/off throttle.
The tech said the slack had nothing to do with the update kit, but it wasn't there before ...
FWIW.