I think android did more than 1mm in the femur and also well he was putting a lot of pressure doing cross lengthening.

External is long, but much safer comparing to LON or LATN, which can lead to deep bone infection and are invasive. It seems people who did those to save time, ended up spending more time with complication

I've read price from some post, they look incredibly cheap: like 3000 for the operation. I don't know whether they went up, but seem that the external there are extremely cheap. Even India is more expensive, and Russia is surely more advanced country.