make much more using simplefx
Bucketshops are for idiots. Simplefx, like every bucketshop on earth, if you bet big and win they'll just invalidate your trade entirely, walk it back, and tell you to go fuck yourself. I've already heard stories of them doing that, not that I didn't know they would already.
Bitfinex = garbage bucketshop scam
Bitmex = garbage bucketshop scam
Simplefx = garbage bucketshop scam
As for other "to the moon" leverage sites like OKCoin, some of the clawbacks for socialized losses I've seen there are simply insane, making it pointless to even use. You can occasionally make money at a bucketshop (I've done it), but the odds are stacked against you and they'll eventually just rob you anyway, deleting any type of gains you've made and then some.