I've taken it solo for purely the same reasons. Does work, but it's not ideal for that and the sides are a pain. It had the tendency to make me VERY nauseous far and above any other tablet (including hardcore opiate painkillers) I've ever used. Plus it can make you really tired, sleepy, and lethargic.
I wouldn't use it unless I was running a Nandrolone and HAD to use it. Also because legit Caber is unbelievably fucking potent (surely I call bunk gear if it has no effect) and it's very easy to decimate your Prolactin levels, if there's not another antagonist (steroids) trying to raise it to balance it out. This is BAAAAAAAAAAD. You NEED Prolactin as much as you need a healthy amount of E2 Estrogen. It sounds tempting to think that you can just get rid of Prolactin and turn into a stallion, but it doesn't work that way.
Lastly - it's a dopamine antagonist, so you can't stay on it, so it's not a long term solution. Also pointless to me. Your body will adjust to it, and if you keep upping the dose you'll just increase the sides and the inevitable rebound when you stop taking it.
To run solo for the sex effects, I always recommend Mucuna Pruriens (L-Dopa) over it, which is similar but natural. You'd never run this on a cycle (it's not potent enough) but it works well for the sexual side of lowering prolactin an OK amount.
The dose is 80% - 200mg dopa dose 500mg tablets (which is two 40% - 100mg dopa dose 250mg supps) every other day.
The starting dose for Caber is as you have it already. Try that first before bumping it. Wouldn't go past 0.50mg x2 (1mg a week).