This is the brand new Track Sensor Solid. The Sensor Solid features a lower RG/lower diff symmetric core wrapped by an orange/red MR-6 solid cover finished at 2000 Siaair. I've drilled 2 of them- the one in this video is laid out with a 50 x 4 1/2 x 20 layout. I kept mine at box surface. I've tried the Sensor Solid on fresh THS, a low volume 50 foot sport pattern and a 40 foot medium volume challenge pattern.
I drilled these for an earlier/smoother type of motion. The one here is a little quicker than I expected for this type of ball but looks good on this THS. The pin down one is ideal for medium to shorter patterns as it is slower than the pin up one. I found this one to be a little too early on the light volume long sport pattern. Thus, that tells me that, at least at box surface, the key to this ball is having sufficient volume in the pattern. I will try some surface alterations to see how the Sensor Solid works on medium to lighter volumes. Still, my sense is, given how strong the cover appears to be, the Sensor Solid is best on fresh, higher volume patterns where a smoother, controlled motion is desired.
The Track Sensor Solid is readily available- see your pro shop for more information.