For anyone reading this thread that might be having similar issues I think I might have figured out some of the factors going into my above issue and hypothesize a combination of three things interacting (disclaimer this is merely my hazarding a few guesses after a lot trial and error, followed by brainstorming, help from Hanaldo and Chris Rogers, and finally at long last getting a perfect 4'x8' infusion yesterday...)
1) The sealing tape I was using made it a lot more work than it should have been to get a good seal, and using the Airtech Airtech VAC RIC (Resin Infusion Connector) in the center of the part going to the omega flow channel combined to result in my having a very small difficult to perceive leak at the center of my part which was being spread throughout my part for the entire infusion. The infusion I got right I sealed between the connector and the bag from the inside, cut a clean hole in the bag, and also then once putting the tubing into the connector also sealed from the outside of the bag... Seems like there should be a better design out there that is lower profile, but unless a layup absolutely demands it seems like it's better to have all lines come in from the side since it's easier to seal and much easier to detect leaks..
2) The resin on my last two parts didn't make it all the way to the MTI vacuum infusion lines which doubled the volume of any gases that were in the part, and the resin absolutely needs to completely reach the MTI lines so as to reduce the volume of the bubbles back to approximately atmospheric pressure (which causes any small bubbles to fully rise to the top of the surface and be left in the enkafusion, as opposed to the part) BEFORE the resin has begun to thicken.
3) Ambient was about 5 degrees F cooler than past two infusions and I stored the epoxy at 70 degrees F, which really helped out realizing #2....
Can't emphasize enough all above is just my best guesses as someone still pretty inexperienced but might help someone that feels as lost in the infusion process as I did a couple days ago..
Cheers,
Dave