Scottoilers were designed to be used on non O ring chains and for those I would recommend them.
Although you get many stories of O ring X ring etc chains doing mega miles and that the oil keeps the O rings etc subtle, I have serious doubts as a chain running at speed would acheive little or no lubrication getting to the bearing surface of the pin and bush.
Over the years I have seen many O ring chains covered in lube yet when there are broken the pins are dry.
There again as I continue to say if an oiler floats your boat and gives peace of mind then fine. I would suggest the use of diesel engine oil in them as apart from cost it cintains detergents. Also a clamp from your local aquarium shop is good to regulate the flow down.
As I have always said if you are producing bits of rubber by the billions the cost should be the same yet there is variang prices upwards wit O, X, Z and W ring chain. Buy a good O ring chain and save money or if you are racing use a light chain as Crispin does.
As said before if I am going into Europe on a blast through the alps I will put a O ring chain for UK use I use a non O ring.
Andy
PS Talon are good people and do not charge the earth for specials I believe they also do in alloy and steel although I might be wrong. It has always puzzled me that even with expensive machines the sprockets are usually low on the "change" list when they are quite a cheap fix and with a new chain will trnasform most bikes.