Thanks for the helpful answers, I really appreciate it!
As I can see the plastic ''feathers'' might cause the problem.
Really?
They are so light and compressible, do they really matter that much? They are made of a lot small plastic pins which stay thightly together, they arent made out of one piece and are easily compressible with a single fingertip.
As said before I dont know their spine, but the shopkeeper told me how much spine they would require and gave them to me, as far as I can remember he used the correct spine for #50 pounds.
In addition, is that shop keeper familiar with trad archery? or is he simply applying the rules he uses for compound bow setups?
The shop is actually specialized for traditional bows, all they sell are traditional recurves, horsebows and long-bows. The owner himself also won a lot of competitions with rifle and long-bow so I dont think to blame him is right. But he ONLY sells plastic-feathered arrows for his traditional bows, thats why I am still puzzled about it.
I'll get two or three arrows with real feathers then, with spine 55-60 and a tad heavier arrow head like 125 grain and see how they work out.
I don't know what's meant by a release that is "slow and soft."
Thats just a bad translation, he showed me the right release so I just described it wrong.
He showed me how to release without ''picking'' the string which makes perfectly sense.
Of course I still have to learn a LOT but the result of my effort I put into shooting the bow is utterly scarce. No progress at all a whole month long not knowing whats wrong is really distressing.