About a yellow dot /shadow

Question
I have a light columbia shadow yellow dot.  Is this a urathane, reactive or polyester ball.  It is a dark blue (with swirled pattern) ball with a polyester looking coverstock.  I thought all "Shadow" balls were reactive, but it looks polyester.  The ball was donated to my high school bowling team, and I was looking to give it to one of my student bowlers that I think needs to graduate to a reactive ball.  Also does this ball not have a true weight block?
Ray C.

Answer
Ray,
Columbia produced Yellow Dots (poly) and Shadows (urethane). But, the specific Yellow Dot soft polyester ball is/was burgundy colored mostly, for a year or two, I believe, Columbia produced the YD in Blue.

Your description of a dark blue swirl smooth poly looking ball with Shadow in Yellow on the ball, sounds like the hard urethane pearl version of the Shadow series. I don't recall the color of the pin of the ball, could have been a yellow marker.

The Columbia Scout series is the same basic core and reactive resin urethane coverstock.

Your Scout ball is better hitting than plastic (poly) but not the cover potential as reactive resin. Thanks for the question. Good luck to your team, and good bowling.