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Old 01-09-2019, 03:53 AM
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ElPrado ElPrado is offline
Ak-Sar-Ben
 
Join Date: Feb 2015
Location: Tampa, FL
Posts: 662
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It's pretty much a spot where they get the mid point of the gate to. If the box fits, they have it square and straight. There's likely a spotter on phone or radio at the booth or an office telling them it's right or it may be a computer. Knowing tracks, more likely a spotter. It's easy to see, directly under the "S" in Santa Anita.😀
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