bugeye, the only part where you and i differ is requiring the 3 words "in Jesus name." be spoken.
I posted in another thread the reason I do as I do.
You said that Jesus did not instruct us to pray in HIS name, and that's true, but, at the time of his instructions, his time had not come and everyone he was talking to, who were Godly types, were Jews.
HIS time came at the instant of his death when the curtain in the temple split in half, and his followers at that moment became Christians.
So, I would not participate in any prayer, of any religion, except Christianity in Christ's name.
I feel that is denying Jesus' sovereignty over all things, which IMO is blasphemy.