Thank you for your suggestions. We have been working with Jacko and for the most part things seem to be working.
I have changed my tone to be more stern rather than weak which helped a lot, obviously. Making crazy noises made Jacko curious and he came running over to me but eventually he caught on to that. I tried walking away, but he just comes running after me and gets just close enough for me to grab him, but when I go and try to grab him he runs away again. The more I ignore him the louder he barks and the higher he jumps, if I keep ignoring him he comes and grabs my sleeve to get my attention or hits me with his nose, but again Jacko is to quick for me to grab him.
What has seemed to be very successful is having him off leash, in a highly distracting area and just calling for Jacko to come, when he does pet him, praise him, and then let him go play again. That way play time isn't over and he is being rewarded for coming.
If he gets to wound up, I put Jacko back onto his 20 foot leash and work commands that way, but he knows when the leash is on and does everything he is asked to do!
It is still a work in progress but I feel we are defiantly making some progress!