The problem with the DBTC program is those who take are not typically giving back. When I first joined MASC I to took some DBTC corals in. I made it a point that every DBTC I received I added 2 DBTC's of my own to the pool, this was on top of what I was to grow out from the DBTC I received. I grew out and put back in every DBTC I received and kept a eye on what I gave out and kept a list of whom I gave DBTC to. Only 2 people that I gave DBTC to have actually given back to the program. I no longer participate in DBTC because of this. The idea is great but the system is flawed, to many takers and not enough giving back.