If you do fakie tres really really really slow, then its kinda similar-ish to a regular tre. The faster you go on a fakie tre, the less effort its going to take and itll also feel more different to a regular tre. The way I keep fakie tres under control is: the faster I go, the less toe I hang off of the tail on my back foot, that way they don't overspin as much when you scoop/pop. If I'm rolling really fast (by my standards) and doing a fakie tre, my back foot is pretty much in fakie ollie position. Obviously you'll still have to mess around with weight distribution and technique but this definitely helps me with keeping it under control.