The cover on the OgreP is much stronger than the one on the GladP, but the core on the GP is much stronger. This makes the OP require medium oil for average drillings, while the GP seems more flexible in its range of oil coverage, medium-light to medium.
I found that unless I had at least true medium oil, the OP would burn up in the midlane and not be continuous at the backend. In fact, it would be almost weak. But that was only because I didn't see enough oil and the flare potential of the OP was much less. It is much more of a control ball, in my experience.
I've had better luck with the GP because of both its greater flare potential allowing me to just move deeper and because of its weaker cover not burning up so quickly.
Higher ball speed will allow you to use the OP on lighter oil, as well as higher pin positions or smaller drill/VAL angles.
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"None are so blind as those who will not see."
