Recommendations for top-notch banana speaker cable connectors

I have raised my appreciation of upgraded cabling recently with the addition of Silnote Morpheus II IC's.  I have 10 ga. ohno copper cabling for my 25' speaker runs.  I currently have banana jacks from GLS Audio (formerly Orange County Audio).  Once plugged in, one turns the connector to expand the pin internally, but they still seem to yield a less-than-secure fit and the metal they use is questionable.  

I have handled WBT connectors at audio shows and they are incredibly fine, but at a price that would bust my audio budget.  Furutech seems to have some more affordable connectors with high purity metals.  I am sure that there are banana connectors available that hit a sweet spot between price and performance and would value any insights you lads might willing to provide.  Thanks, Mark