So I decided to purchase a CTEK MUS 4.3 charger/tester to make sure my battery is always topped off since I go several days without driving my vehicle. It came with the Comfort Connect extension to permanently connect to the battery. I was at my local Alfa dealership recently and asked the technician if he could install the comfort connect extension since it was there for an oil change already. I noticed that he attached the negative end of the comfort connect to the actual nut that secures the entire negative clamp to the battery's negative post instead of the nut next to the negative terminal (per the user manual instructions). I have charged the battery several times already and have encountered no issues. My question is: does connecting the negative end of the charger to the nut holding down the entire negative terminal instead of the recommended nut per the manual have any long-term detrimental effects? It was an Alfa tech who installed the connections so I figured they would know if the connection is okay. Its been over a month and I've used the charger on 3 different occasions without any issues. Thanks in advance for any input.