Sadly have been unable to source a good supply of Blackwood. Also found it generally to be inferior tone wise to koa. Others may have a different opinion - this is mine for what it is worth and I don't want to get into a spitting match over it. In fact the last Blackwood instrument I built turned out OK.
just bought one today, and very light . i can only compare it with my kala mahogany, and maton got sweeter and more volume and got it for less than $500 incl hard case.