Regarding introverts vs extroverts i believe lead has nothing to do with the difference Never Satisfied and I feel so Mike is still correct. With the extros the drag of a sticky dry track has a tooth to climb onto vs intro which doesnt. Also these cheap extro drivers are molded. No Way within .010 accuracy and even if they are the extro tooth wears very quickly making the effort of the engineers pointless. Like I said when in snow and lubed I cannot feel the difference between the two and my results dont show it was worth the effort. But in my mind,clip wise and vibration and alignment wise I made the right move.
This is 6800mi original set. Too me it looks like the extros teeth were all that was driving most times and I run studs so track is fairly tight. You guys have way more power than me. Expect this way sooner. If want extros buy a good set like Wahl. Cat Extros are junk,clip eating Chinese quality. But they do work. Just not like they could if built right.
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