I just wrote about making reeds for kaba gaida: https://forums.chiffandfipple.com/t/tuning-kaba-gaida/73846/1
This is, of course, very basic and incomplete, but I think it can be helpful to get you started, much of it can be transferred to djura gaida reedmaking.
For djura gaida, the dimensions are much different, the original reeds will give you the right idea.
Also, for djura gaida, you want all the tones in tune, not only the top hand, and the marmorka should work on all notes (although very often, it doesn’t work well for the lowest tone).
!!! Rubbing with suet is only for kaba gaida reeds made from elder instead of cane, never apply it to a cane reed, you will ruin it !!!
Apart from that, I’d second every bit of what pancelticpiper wrote.
Is your instrument a gaida in RE (bulgarian denomination): lowest tone of chanter = RE, three-finger note = keynote = drone tone = LA, or does it actually play in RE, which means lowest tone = SOL, three-finger note etc. = RE (this is what a Bulgarian would call a SOL gaida)? And, who made your instrument?
MichaelLoos and pancelticpiper
Thank you for your answers.
The gaida is in RE (bulgarian denomination. Re=lowest tone of the chanter). It was made by Z. Beshendjiev. The reeds are from elder. At least it looks like. I can not rehears half hour a day because the original reeds do not sound. The chanter reed is sounding just when i am pressing the bag very hard and it is overblowing (It gives me some high shriek notes). Drone reed does not sound at all. I am now “practicing” just with the chanter. I put on it a thin cane reed that goes easily, but not quite in tune (specially the notes that have to be obtained using the fleanote).
I will try to make a reed with plastic body and sax reed (as MichaelLoos explained) for the drone. If i will succed i will then try for the chanter.
Thanks again.