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These are amazing wheels. I have two teams who are using them in their odometry pods. The rollers have a very slight compliant feel to them so they don't slip on lots of different surfaces we've tested, but are solid enough that they don't deform.
The soft green roller doesn't really work for Omni wheels because they deform too much.
These little omni wheels are great on an intake when some lateral centering is needed. We on 1519 used them in 2019 on our cargo ball intake with great success. We definitely recommend these wheels to other teams!
We should note, however, that the green 35A wheels wear more than the higher durometer gray ones, and that the green is just about the perfect color to potentially confuse your vision software if you're relying on color recognition from green LEDs on retro-reflective tape and these wheels get in the field of view of your camera.