I've seen between 20-25 of his signatures, either original or in various books. All were spelled 'Paramhansa'. I've even seen letters at Mother Center signed by the Master. All were signed 'Paramhansa'.
Again, there is no legitimate signature on record showing the name spelled with the extra 'a'. There never has been. Long before the yogananda-dif.org website showed how the 'a' was copied and pasted, I saw the same thing.
I rest my case on this Ketch. There is easily enough information on this for most people to make an informed decision for themselves on who they believe.