Ron
You are the only one who has this problem of gaps. I know I never have this problem.
Sure !!!! I have gotten better and here is what I attribute it to.
First, I went with Stew Mac binding bearings and bit which is giving me good success at reasonable cost (<$90)
Next, I have been thinning my wood bindings more which makes them more pliable.
I use tightbond and have all my binding tape precut and ready so I can work fast.
I copied the approach from Robbie Obrien from his video where the bindings are across from me and pulling the body against my body as I pull the bindings.
Then, as soon as one side is finished, I run that cotton straping material (not sure what they call it) around the body binding it all up. I only do one half at a time and waiting a couple hours in betwen sides.
Probably not the most efficient approach but I am not working to a schedule.
Also, when using a binding with a purfling on the bottom I glue the purfling to the wood binding, scrape it level and then bend the bindings.
Hope this helps and realize there are probably much more efficienct approaches but this has been working for me.
Most of these tips came from Robbie's DVD series which are a great value, as is John Mayes. I have purchased both and picked up some neat tips from both.
Hope this helps