Currently have an AA catted DP, it's improved the sounds nicely. The 23s seem to have a little less burble which is nice.
I have an SP1R on route, hoping it's not too obnoxious. Really wanted to try RK otherwise but it's 8-10 weeks out.
I find if you shift quickly you don't really have this issue. I have that issue if I let it "hang" in between gears.
I also found the 1-2 shift awkward at first, but if you put a little more gas between it's quite smooth.