In a strange turn of events, my original 335 is currently enroute back to Sweetwater, with a replacement to be sent next week. There were several issues when I received it - a strange rubbery sawdust like material was all over the inside of the case, there were several QC oversights with the guitar itself - smudges, marks, and sloppy painting along edges. The main issues were all cosmetic, but it was a strange state in which to receive the guitar and indicated problems at both the Gibson Memphis factory as well as at Sweetwater.
Sweetwater endeavored to correct the issues with a replacement, so now I'm just waiting for them to send the new one. They notified me of a couple small cosmetic issues, but nothing affecting playability or tone. These issues weren't a big deal for me, just the indication that the whole process had been rushed or incomplete with the original guitar. I'm not precious about an instrument's appearance. I don't go out of my way to break them in, but I don't get upset when dents, scratches, and other wear occurs. It's part of the natural playing process. However, I do expect a new guitar to look new when I first receive it.
I finally got my grades for the Spring 2018 semester, an A in the guitar course and I managed to eek out an A minus in the ear training course. I think my final assignment encouraged him to curve my grade a bit, because I was expecting no better than a B given the work I never bothered correcting, even though he gave me the opportunity. I think the complexity of my final project convinced him that even though I sort of avoided his specific approach with solfege and conducting, I have still managed to develop my ear quite a bit. In the case of harmonic ear training it was beyond the scope of his course. He indicated it was more consistent with the final assignments in the 300 level harmonic ear training course. So, there's that.
I do plan to continue on with my ear training, it's clearly integral to good musicianship and composition. But, I'll approach it at my own pace and prioritize according to my goals and needs.