Rattigan;
Yes, it was the Boozerford days that the Judge grew the JW religion.
There was a video on youtube a few years back where James Whyte was interviewed in detail. He relates how to grow a 'cult', you need a radical, charismatic 2nd ''guy'' so to speak.
He explained with Mormonism you needed a 2nd in Brigam Young, and with the IBSA(JW's) you have Judge Rutherford. He related beautifully without the 2nd ''guy'', the movement can't evolve. We have such ''radical'' unbiblical doctrines which are hard to defend to this day because of the 2nd guy.