The Bills kicked the tires. If he leaves without a contract so be it. Slauson and his agent know there are going to be injuries in camp, someone will need his services. IF the Bills did not offer a deal Slauson thought was good enough he will wait.
I do not think the Bills should over pay for his services, I was ok with heading into camp with what the Bills have/ see what cuts are made later in the summer and camp. I think Slauson would provide nice depth and flexibility, but i trust Whaley and the Bills FO.