DIY boxing & packing with substantial improvements via ply & foam, are IMO, the way to go. Especially if one has an item they wish to continue modding, or upgrading with the maker. Additionally, for those selling expensive one off, or no longer made products.... and for overall peace of mind.
Personally, I could care less what sort of packing (orig. or DIY) an item arrives safely within... Just so long as it DOES ARRIVE WITHOUT EXCEPTION (S).
Peace of mind is a priority for me. sometimes it has a price tag. it's price however pales in comparison to the cost of trying to regain it if some misfortune occurs, and outlay was not previously expended appropriately.
has anyone any experience with those who sell flight cases custom made for gear? Like Pelican, etc...???