Darren wrote: Why do you want to breed a B.vagans? waist of time in my opinion, in South Africa that is.
1) They been way over bred.
2) No one is going to buy them.
3) If you do sell you will be LUCKY to get R5 a sling maybe even R2 even for free people don't want.
4) In the light of the above you going to have 500-1000 slings. Are you going to keep them all when no one buys?
Sorry to p!ss on your parade but these are the things you have to think about when breeding.
Darren has a point. If you look at the number of advertisements on Gumtree for tarantulas (especially slings), I can understand why some of the classifieds on here don't get much attention. It's the same list of tarantulas over and over again.
But each to his own, maybe there is an untapped market we don't know about?!
Good luck with the breeding