@RealDamagedLostSoul:
Not sure what the WB recommendations are for Precise 2.2 these days. This was my own experience in 2014 with Precise 2.0 at 22 years old...
1) Was 147 lbs (66/67 Kg) on operation day and went down to 129 lbs (58.5 Kg) over the course on lengthening.
2) From 3 days post-op, I never used a wheelchair again, walking everywhere with a walker.
3) I lengthened 6 Cm and switched from walker to one crutch at about 5 months, and full weight-bearing at 5.5 months.
4) At around the 7-month mark I was routinely walking long distances with a pretty normal gait.
5) By 8/9 months I had pretty much forgotten that I had ever done LL, even though my high-level athletism wasn't back to normal, daily functions were back to 100%.
I hear that 2.2 is stronger than 2.0 because they worked out a lot of the problems with the design. However, if a lot of P2's have broken they may have modified weight-bearing restrictions. Remember under 75 lbs per leg can easily be achieved if you are really conscious about shifting weight onto walker or crutches. I probably could have used crutches earlier, but I chose to use walker because of balance and to mitigate the risk of falling. I also started driving about 3.5 months post-op, and because I was well under 150 lbs after atrophy, I could stand up on my 2 feet and pump gas, transfer in and out of car, and perform basic functions like that.