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Yes, twice, first time last year in January in Singapore to study with him and again in KL when he was here for a bit. I wrote about his clinic in Singapore too in case you haven't seen it:

http://azsamadlessons.com/?p=227

Mateus is really nice and is super cool.

thanks for link! .. apreciate it very much.. hope to meet you soon if there any chance.. looking forward for your lesson and advice..

If you're in KL, please let me know or come to one of my shows! :)

For the lessons stuff, you can check out the new blog post series and pocast on Steemit + my lessons website.

Thanks again!