Didn't see EBS with FlashBench

Hello, I couldn't figure out the Erase Block Size of my `Apacer Technology, Inc. Handy Steno 2.0/HT203` flash stick.

As I understand, I have to run test as 1024 multiplied by factor of the stick capacity, is it? So, I ran tests with different blocksizes http://pastebin.com/Zb00RjfM

Alas, I didn't see anything resembling EBS ☹ I could suppose it is either of 16384, 24576, 57344, but searching over the Internet shows that EBS never appears that low. Any ideas?