I've never had a single DOA atty (901, 510, or 801). Have used loads of 901 attys since February (I'm of the trog school and use the same atty for two or three weeks and then bin it). I've had one of two die in the first couple of weeks - that's all.
I've had a number of multipacks from TW and had no DOAs as yet.
for general readership not you prof.. we use and test hundreds of the TW multi pack atomizers... the no warranty which make major sense is all about cutting expensive western handling costs down..
we know for %100 certain DOA atomizers are extremely rare.. one in hundreds..
we test every one we get.. i am being honest when i say one in hundreds are DOA..
now for the problems.. some users on the TW boards have reported three out of five being dead.. we know this cannot be true.. the problem is how the user tests them.. they do not as we do use known good batteries with good connections.. they i use any old half worn out things they happen to have..
sooo testing a five pack of atomizers on less than good batteries can appear to be dead atomizers to the user.. they report it as such and claim a new ones..
the seller cannot allow for user mess ups.. we also know a lot of e cig problems are user mess ups..
these things were never really meant to be swapped about willy nilly.. some spare parts will not work with other half worn out spare parts..
this all causes major headaches for the seller.. my atomizer dosnt taste right can i have a new one can lead to the need for a very expensive chain of emails and sellers time.. it massively puts the price up..
this can make a warranty on a three dollar atomizer from china a very expensive item once the handling costs are factored in..
we know exactly what the sell cheap no warranty multipack thing is all about and it really does make sense..
there are no such thing as sub standard atomizers.. multi pack no warranty atomizers are exactly the same as any other atomizers.. selling them cheap and with no warranty in multi packs make perfect sense for everyone..
the fact you get five is the guarantee of functionality.. if you get the odd dud one.. so what.. chuck it and carry on.. it all works out cheaper for everyone concerned in the end..
never ever buy one single e cig part.. never ever rely on one single e cig part.. always buy cheap and always buy in multiples.. trust the seller or dont buy from them.. over-long guarantees with the seller having to price in sending out multiple parts because he knows he will have to is a fools game.. a very expensive postal email merry go round.. give TW credit for trying to put an end to it..
basically a warranty on a reliable part costs bugger all.. a warranty on a less than reliable part costs a fortune.. the bakers dozen principle is the best way.. in fact its the only sensible way.. google bakers dozen to find out what the principle is about..
trog