SC-450Plus CB Vintage Series : Great Guitar but some minor flaws

I was excited to see this package arrive and quickly UN-boxed this guitar. Upon initial inspection the guitar had no visual cosmetic flaws, the switch and knobs all seem to move the bridge was set up a little high, but the neck had the right amount of relief. This is a great guitar for the price. Upon initial tuning I noticed that two of the tuning pegs were not screwed in tight, the screws were not tighten...how it made it passed inspection? Also there was some issues with the tail piece post, but I have experienced working with guitars and was a non-issue. The post was not fasten to the body and when I changed strings, they both popped out. A little tight bond glue (a drop) to keep them in place. Otherwise still a great guitar.