Hiya Ray,
The Adrenalin X is a very good copy of the Shimano 20/40. We have sold a few at TTD, touch wood, no come backs yet.
Like a Rolex and a fake Rolex you can just feel the difference between the Adrenalin X and a 20/40. That said if you make a very good copy of a AK47 you are still going to have an excellent machine gun?
They are only a few hundred bucks cheaper than a 20/40, but if bucks are tight then buy the best you can afford and go for the Adrenlin X. I would wait, save, and spunk the extra cash and get the Shimano?
