Distinguished SOTW Member.
As written in the title... is there a synthetic reed that sound like a LaVoz reed?
I'm using Hahns since more than 4 years ago and never had that problem. Probably your reed was too hard. When using synthetic reeds you could use a very hard reed because the reed will sound anyway but after some time of hard playing your inferior lip could start to hurt. This is not due the reed itself, this is a consequence of using very hard reeds.I played it for about a 2 hours, I ended with a big cut on the inferior lip (on that reed the sides are very edgy). Next day I sold the reed to a "classical" friend..