Never, wouldnt buy forks/shocks with it.
Lockout, when I bought my first full sus, after reading all the guff it just had to have lockout forks and rear sus too…
After only a short time I decided it had no place on my MTB, I just dont get it, locking out the rear made the bike so stiff even road riding was a chore, the whole frame was rock solid rigid and even on road it felt uncomfy, locking the front made no difference to me uless I was out of the saddle for extended periods, maybe if you was SS it would be good?
I guess in a way its a testament to how good that bike was as it climbed bob free and could serch out for traction on slippery climbs so much better with the sus in pro pedal setting.
Now lockdown forks, well I get that completely, very very usefull to be able to pop them down 30-40mm with a quick push for a tricky climb. Travel adjust would be OK too, but only the on the fly type. Gives you the option of running 20-30mm longer forks than reccomended and still not having it wander on the ups..