[Preamble Oh LBS schmellBS

I can't afford LBS prices. I would never be a road biker but for my carbon frame. I would never have got a carbon frame at 2000 USD
plus prices offered by LBS. I think that the cheapest they offered was about 2400 USD or more three 1/2 years ago. On the other hand I can get carbon road bike for 1400 on ebay (or Japanese equivalent). My new Z5 was 1400 USD including postage. Maybe if I were in a bigger city then there would be some cheaper LBS but in provincial Japan local bike stores are out of my price range.
I bought my Z5 at the same nominal size (54cm) as my
Azzurri Primo but the Primo has a more backward sloping seat post. I have my seat post up very high with the saddle rails up 28cm above the cross bar. I use a full 4cm of set forward (a *reversed* i.e. set forward British USE sumo) to get over my pedals . I got the Azzurri Primo direct from Taiwan for 1600 USD. That is another reason why LBS are expensive here - because we are near Taiwan, where the bikes are made and can be bought online really cheaply, especially in Asian (i.e. slightly smaller) sizes.
Also, before that I did buy an aluminium bike from my LBS and the fit felt bad the bike was not at all to my liking. I was unhappy with their advice. I love my Primo and I am getting to like my z5 even more. End of Local Bike Shop story.]
I have just checked my KOPS (thanks for that) and find that on my Z5 my knee is still a little behind my pedals. Drat. (
Sheldon Brown's page on KOPS explains it, even though he did not entirely agree. ).
I don't think that I can get a longer than 140mm stem so I will get one. There is a +- 6degree
Carbon Microtech and a +-10 degree Aluminium
Shimano stem both at about 50USD on auction.
But I am still not sure of the angle to get. That is why I would like to be able to use that clever FELT angled shim.