If you're into RCs, I recommend pagoclone. It's a derivate of the z-drugs (zopiclone, zolpidem) which isn't sedating. It's not the strongest agent around but possibly the only GABAergic besides some exotic Russian ones (Stresam/Etifoxine) which doesn't make you tired. Also has been through clinical trials, so it should be safe. Don't know why they discarded it, one trial was against stuttering where it failed but there must have been some reason not to trial it against anxiety, Maybe concerns about losing the money because it's too recreative?