No. Just no. I'm pretty sure were all perfectly capable of pronouncing "Jason". We don't need any help, thank you very much.
-- Anonymous User 3/5/2013
Every other guy of a certain age is named Jason, and the name is still kicking around in the Top 100. I really don't think the name needs to be spelt phonetically for people to figure out how to pronounce it. If this spelling is being used to try to give a long-played-out name some kind of fresh, original twist, it fails at that too.