I got the generica modiawake 100mg.
Started Taking 200mg every morning on saturday. I'm studying for the LSAT and have been occasionally taking 25mg vyvanse, so I'm familiar with the focus increase and systemic effects of amphetamines.
200mg mod gives better focus than the Vyv and has none of the other sides of a stim no racing HR, no purple blotchy skin from reduced systemic blood flow, no BP headaches, nothing. Just drive and focus. Also helps piece together abstract concepts much more easily, very helpful in understanding logic. I wish I had found this a long time ago
I take it about 7 am and have plenty of energy until about 8-9 pm. No problems sleeping at all. And no morning "hangover" like a typical stim gives you. Also exceptional focus during workouts. It's impossible to get distracted from the iron, even by the nicest spandex-clad ass, completely in the zone.
Highly recommend