AS with most TRUE heavy oil balls, it's not how much the ball hooks but how well it handles oil and volumes of oil. Actually, for true hevay oil balls, I would expect the overall hook number to be lower than for many medium-heavy oil balls (more than a few of which have finer finishes than true heavy oil balls) and many of which have 2000 - 4000 grit Abralon finishes, rather than lower grit finishes like 600 grit US or 1000 grit Abralon usually needed to handle true heavy oil.
That said, I am not sure exactly how heavy an oil the TR2 would handle compared to acknowledged heavy oil balls such as the Mega Friction, BOunty Hunter, Ogre Particle, Warp ZOne, Awesome Hook, Dynamic Power, etc. Most of those are not big hooking balls, but early hooking ones which handle oil.
The earlier a ball hooks, the less it will hook overall. Unless you have a lot of hand, most true oilers do not have a lot of backend.
I'd worry less about the actual numbers in a review than the text about that ball and how the review is done and how the oil patterns used to test that ball are laid out and what type of bowler is testing the ball. The words, more often than not, mean much more than the numbers.
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"None are so blind as those who will not see."
