I’ve a funny reed in my C chanter. To get it playing in tune with itself, with a nice tone, the lips of the reed are fairly closed, but this gives makes “soft” bottom D difficult to sustain (it jumps up to something like Bb) and the hard D is no longer attainable. If I open the lips a little, the hard and soft Ds are both easy to play and maintain but the tuning goes all over the place.
Any suggestions for strengthening the hard or soft bottom D ?
Apart from the bottom D issue, it’s a nice reed (pressure, tone, etc.) so I’m anxious to keep and I don’t want to do too much R&D on it.