I have learned a lot from reading Zeev over the last few months. His ability to scalp the daily market is amazing. His concept of the "outrageous bid" has made me some money. Staying out of the Nassacre was very valuable. His Dow stock calls (both down and up) have done well for me.
For free advice offered on a public web site, I find it hard to complain if he doesn't hit 100% of his timing calls.
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