I'm not sure what your asking... I think there is nothing wrong with your site. It has content of interest to others. It's targeted towards an audience in a unique way I think. The website structure looks fine... The graphics are slick and professional. It's accessible. It's all around good.
When I used to worry about supplemental ratios... I used this...
http://www.google.ca/search?q=site%3...seoworkers.com
I could never get exact supplemental ratio listings. However... the number of real pages indexed using the normal site: prefix is 42... which co-incidentally is the same number returned in the estimate of the inallurl prefix search. Not sure if it means anything exactly... but it's notable I think...
In any event it's always been a bit of a mystery...
Edit... my mistake... it's 32 not 42... still a mystery... I just don't know... who does?