Recently I changed my name from P.K. Margis to P.A. Margis. Why did I do this? The short answer is that it was time to be more authentic.
Years ago I made the business decision to take on the pen name of P.K. Margis. But recently I've decided that this is no longer necessary and have changed it back to my real name P.A. Margis. 
My new site is www.pamargis.com. It looks exactly like www.pkmargis.com but the web address has changed. Once the search engines have recognized pamargis I'll be deleting pkmargis.
In the meantime I'm content to be back to my authentic self.