Robo,
Good observation and (not just because) I agree with you so, up to a point.
My Kong and Absolute Power are very much in the control vein type of ball.
My Legends: Yeah Baby, BP (so far), BK and MP are more flippy.
YB are slight flip with no feeling of Not being in control. That's an odd of putting it, I agree, but it's the feeling I get when using them.
However my Legends New Standard and the NS2 are also MAXIMUM control balls!
On the other side of the coin, the 2 Big Bangs, both Lanemasters lean much more towards the flip side, with the reactive being really flippy, in general
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"None are so blind as those who will not see."