I used to have a Threshold in the past and had trouble getting it to hook, since I used to throw way too fast, but I still had great success with it, shot like 3 290's in a week.
Now that I have slowed down and wanted a heavy oil ball, I found one of these babies on eBay, so I bought it and drilled in 4 1/2 x 3 pin under.
This thing is nuts. We were bowling for strikes Sunday after the banquet, and I threw 9 in a row one time and 12 in a row another.
Took it out for its first league night and shot 236 first game with the last five, 300 the second game, and went front 7 the third game!!
24 in a row is my new record. This ball is still one of my favorite of all time. I still have yet to see a ball hook more in my hands...
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When having trouble, just throw it harder!!!