Throat tremolo

Hello David,

I was wondering if you have any videos/exercises on the website on how to master the throat tremolo. I'm having a lot of trouble doing it on the draws when I increase the speed on my study songs. On the blows my vibrato is nice and even but on the draws I can't do it as fast and my diafraghm starts shaking. How can I get better at this?

Thanks for the help and for always answering so quickly.

Really loving the website!