Yaba is nothing to write home about. If you're fantasizing about what a great high it'll be, you'll be disappointed. At one time, it was sold legally in Thailand and used mostly by truckers, so it can't be that intense or they wouldn't have been able to keep on truckin'.
The ingredients are methamphetamine (think low quality crank type), caffeine, binders, colouring, and vanilla to make it tasty, so why not just get meth? Smoking yaba on foil leaves a messy resedue and is quite wasteful. Injecting it doesn't wo
rk so well. I was foolish to even attempt it. You'll understand exactly what I mean when you smell it. That cannot possibly be good on the old veins.
The only thing Yaba has going for it is that it's cheap. For me, I also get to sleep that night. I know a few people who give Yaba away free of charge just to avoid dealing with it.