1.4 is worth a go if it's all you can get its worth shot..it's just more unpredictable in dosage.
I always found it was quite easily predictable. About 2mL/2g is the sweet spot (
density of BDO is conveniently same as water, 1g/mL), plus or minus 0.5mL/g, redose every 3-4h.
And though I can't claim this is typical or advisable, there was a period of time where a good friend of mine, and myself, probably went through something like 2 liters of pure BDO, just from basically spending all day constantly redosing with 2g amounts, for no doubt several months. There were fewer blackouts than you'd expect, and most curiously,
neither of us seemed to have any sort of withdrawal or rebound effects. When the BDO ran out, we both kind of looked at each other, shrugged our shoulders, and went on our (less sedated) life. Not a lick of physical dependence, just some (expected) mental laments that "more would be nice." No seizures or unusual anxiety or nerve issues, and we weren't substituting with baclofen or anything either.
Years later I am prescribed/functionally dependent on baclofen, for spasticity secondary to a spinal injury, Like BDO, when I have run out, it's unpleasant (my spasticity comes back, imagine the convulsions your body has from a hiccup, now imagine that continuously, every 1-3 seconds, after any sort of stimulation - it could be as little as lifting a blanket up. You can't think, you can't sleep, you can't concentrate. Even if you try to stay still, it's autonomic...
Anyway, when I run out, I do notice rebound spasticity (or is it the baseline spasticity that is usually medicated?) but have yet to have severe anxiety or seizures.
And for the aspiring psychonaut, baclofen is
not a good GHB replacement. It lacks any euphoriant effect. At best it's a good sedative, an (admittedly reckless) associate I gave ~70mg baclofen to decided it was smart to eat it all and ended up having a 36-48 hour snooze. In fact, baclofen OD is literally one of those drugs in spy movies that Q cooks up to make James Bond appear dead to infiltrate the Russian genotoxin lab via the morgue..., that is to say,
a big enough OD mimics brain death.
If they keep you on a ventilator for long enough]/i] your liver and kidneys will "do the needful" (as the Indian English speakers would say) and excrete the baclofen until the point where your brain switches back on after its impromptu nap and you wake up as if nothing at all had happened. Pretty trippy.