Jessie, absolutely wonderful. 

Dima used the very same techniques to build his own MF horn. BTW, I made in past a prototype horn with similar idea that ended up disasters because of my stupid “willingness”. While I was applying plaster I spared led shorts across (got then in gun store) the wet plaster. So, the frame was very thin and I over apply the led shorts… as the result when the plaster was 70% applied it got too heavy for my frame and it collapsed…. I remember I was laughing like crazy….

After your horn will dry and you will do the final finish then do not forget to finish it properly. I was taught and I confirmed this fact with my own experiments that the finishing of the upper skin of the horn has very large influence to the MF sound, in fact even more crucial then some aspects of the horn itself. When I say “finish” I mean nether the sexy look, nether glossy shine, nor the utilitarian approach of unfinished horns (which in fact never sound good). I mean the finishing should have specific sonic merit. Contact John and he will tell you about his techniques, I learned from him and now I very much evangelist of his approach.

Rgs, Romy