>>11430612 (OP)>>11430737On sites like Amiami/Mandarake I always go Air Registered. You save significant, and it always gets here in like a week. However on sites like Hobby Genki or nin-nin these sites massively overcharge on the shipping and thus air mail registered only ends up being like 500-1k yen less so I usually just say fuck it and go for one of the 1-5 day premium options since thats hardly anything and it offers more "insurance".
Postal Parcel Surface Mail I believe is where they put it on a boat and it can take long as shit to actually get there. Basically they wait until they have enough shit to stick on the boat and then when theres enough stuff to warrant shipping it over, thats when they send the shipment. If time truly matters nothing to you, you will most likely be fine, but personally the savings isn't worth it to me and I generally want my package to spend as little time in the shipping process as possible. Like I said above, your boxes will MOST LIKELY be fine, but again not guaranteed. Whether the delivery time/savings is worth it is entirely up to the individual really.