The added value is that with Stryde you'll be able to walk about 1 month after opetation while with precise 2 you won't walk, even with walker, at least 4-5 months after surgery.
And completely unaided, at least 6-7 months after surgery for about 7cm lengthening.
So the difference between unaided walking is about 6 months for 7-8 cm which is huge.
Actually, I walked baby steps with a walker a few days after my surgery but mostly just did standing. Some Precice 2 patients on this forum did walk with a walker during their lengthening months I think, I personally did not.
I think for me it was something like
0-3 months: standing with a walker
3-6 months: walker
6-7 months: crutches
7-8 months: partial crutches/unaided
8 months onward: unaided, slight limp and sometimes walking stick (for the left; because my right was well healed and left was lagging)
10 months post-op: Unaided with a proper, normal gait
Two things worth mentioning:
-my left leg was operated twice due to a faulty Precice 2 nail, so had that not happened I would've probably walked unaided and with a good gait around 7-8 months post-op.
-returning to your old self takes way longer than it takes to get a good gait. Even after your gait is good enough for people to not suspect anything, you won't feel normal. You'll look 100% before you feel 100%. Agility and quick turning, instantly sitting and getting up etc takes time. I've felt normal for a long time now, say 95% of my old self, but the last 5% is a slow recovery. I'm good enough to jog or cycle etc, but not good enough to play football without suk a$$ at it yet. Beautiful thing is I'm still recovering, so I have a feeling eventually I'll have a flawless recovery. I'd define a "flawless recovery" as "playing intensive sports without having any problems that a non-LLer would not have".
tl;dr if you want to do LL, you HAVE to be in it for the long haul