Thanks for the info Jorge!
Of course, my girlfriend believes that these drums must be "los mejores del mundo" simply because they are from Colombia. It does not matter that she's never drummed in her life, but those colombianas are very proud of their country.
As I said, I don't think I'd buy them sight-unseen, but I might check out this guy's shop on my next trip down south.
btw, my computer with notation software has been down for a while. Over this weekend, I might find the time to fix it and input a few things of my exercises. I'll let you know.
thanks as always...
...chris