Dear customer,
Many thanks for your message, I have emailed you directly to discuss a possible solution.
The reason we don't accept returns on any reeds including synthetic is purely for hygiene. Many synthetic reeds, fibracell included, are actually porous and so cannot be sterilised.
There is no universal standard for reed strengths, however, there are comparison charts available and our woodwind specialists are always happy to help and advise on reed strength.
Kind regards,
Matt Sanders - Dawkes Sales