Your observations are correct, Doug!
I have the TX-1 and the SX-1 and they both have that urethane look and feel
to them......when the backends are flying and your bowling on a shorter
pattern, these balls are KILLERS!
You'll also notice that the oil does NOT absorb into the ball, which is one
of the reasons this coverstock (same on both balls) does not like carrydown.
Having said that, both of the MOTIV balls are always in my bag.
Especially when I'm travelling to tournaments. If you're bowling on
a Sport or PBA pattern, these will help you control the lane.
Cheers!
George
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"You may not like it now........but you'll LEARN to like it!"Canadian SAWhead