If you already have your moulds then UE will deduct the cost of the mould taking from the price or the monitors.
I have used UE's products for 3 years now and through my involvement with them I have at times been a crash test dummy for prototype products. I have ear plugs, sleep plugs, monitors all paid for with my own hard earned cash.
But I've also trialled and broke several hundreds of pounds worth of product and all of the stuff I broke never made it into production. All the R&D has ensured over the years improvement to the products and new products being produced.
My own monitors have gone back twice, once for gummed up (wax) drivers and once for brittle cables*, both after the years warranty was up and both elicited an out of warranty repair at cost to me.
I use mine a lot, an awful lot and I have sweaty ears which was the cause of the gummed up drivers, when they came back from repair they had wax guards fitted, good for keeping solid wax at bay, not so good at dealing with liquid wax which is what caused my problems, so I use an ear cleaner regularly.
So the product is not infallable and whilst very occasionally a problem may occur in production they are reasonable people who will get things sorted, more importantly they do this for real not as some hobby and you will find them at most bike shows, music shows, game shows, GP's and WSB races etc across the country as well as at their offices in Sidcup Kent where all their production takes place on site by their own technicians and not farmed out to a 3rd party.
I don't think I'll ever understand those who have paid good money for these products and give up on them and sling them in the drawer or bin thus throwing the money down the drain.
I make sure I clean mine after every use now and so far so good
* The cable goes brittle after extreme exposure to the elements, keep the cable out of the elements for prolonged life.
Ultimate Ear and Green Leopard are not the only manufacturers of custom ear protection