Hi friend,
There is a tip for 64 wallets,
The beginning starts with the letter B. The next most likely is the number 2.
The highly probable start starts with B2, possibly with B25 or B26.
We have pretty similar results of search area, maybe because using average. I got the range of between B3C - BD4, but still it take ages for me to complete this range with 90 mkey/sec. LoL