hmmm.. I posted about 10 hours ago and nothing showed up.
Peterayer, anyhow, I don't know whose blame this is. It could be combination of Arche, Koetsu's dimension and stiffness of leadwires. Actually I should say the stiffness of the joint and leadwire end with heatshrink. The wire itself in the middle is quite soft. With Oyaide wire and headshell, there was not much room between cartridge and terminal on headshells and eventhough I could force Koetsu into the right position. When I took it off Oyaide headshell, there was enough pressure to bend a couple of pins on Koetsu cartridge quite a bit. Syntax had no problem with Ikeda silver leads and Olympos. Now, I have no problem with Air Tight and Acrolink leads. I don't expect further problem with Koetsu either with right leadwire. Enough to say that I am getting a 2nd Arche and probably a third as well...