I run a strictly only brake bad and rotor replacement business. As I’m getting more business, I’m running into a problem. I’m mobile, I always pick up the pads before going on site. Sometimes I get there and the rotors need to be replaced This causes me to have to leave the job and source rotors. Ethier leaving the car in jackstands or putting it all back together. I had an idea to just buy all 4 pads and rotors before each job just in case. And return what I don’t use. But I feel I would get a bad reputation on my commercial account at the parts stores doing this. I sometimes travel pretty far for a customer. How can I make my diag and parts problem more efficient so I’m. It having to leave my job site? For reference, a customer calls me to replace brakes. I almost always try to upsell all 4 wheels because customers truly don’t really know what’s going on. I buy the parts and go do the job. No diag. Having to diag before I get parts would kill my time and my profits of traveling all over the city. Anything helps! Love this group