All thanks for the info anyway. There is still Paul Cozzi who similarly seems to be held in high regard also and had a HC thread about him recently.
Re the top 20 I am wondering whether the recent pop has coincided with the completion of the founders sell down that was discussed on here recently... Seems to be a common phonomenon with these micro caps that they get pushed down to extremely low levels due to forced or indiscriminant selling and then bounce hard.