Im wondering which service you used most. Also wondering how many packages you have had damaged by sorting machines and or left out by neglectful postal/ups/dhl etc carriers in the rain or some other small snafu of the carrier?
I'm using double walled white slicks and double wall brown uncoated both with the PVC end caps. Had very good results with taping down ends but on occasion some issues with dents arriving on about 11 out of 100 packages sent.
I replace all defects or damaged items regardless if insured or not(especially for small orders) but would love to hear others ratios and stories.