As I understand it, all versions of the PowerLock now come with the "older" bar locks. The PowerAssist will be the only MT keeping the "piano" locks.
I for one prefer the older original style lock. I dislike the piano locks not only for their functionality, but because you then had to remember to add spacers between certain tools to make everything line up.
I've posted before that I got my Powerlock for work as an electrician's assistant. I have spent entire days doing runs of Romex, and repetitive cutting of 12-3 will KILL my hands. For this, I think the Powerlock will OWN. All the testing I've done with it says they are easily up to the task. For that alone, I think they're worth it (to me).My version also has the single locking bar, and my bottle opener tends to wander in so deep it prevents other tools from locking on that side. However, once locked, the tools, at least on mine, are solidly locked. Rock solid, as far as I can tell. Sorry for your frustrations, and I hope you find one of the models with the piano locks. I think that'll solve a bit of your frustration.Just, also... watch out for the little metal clip on the socket driver. I've heard tales that they are easy to lose.
I too have recently got a powerlock, and was surprised that the piano locks (plural) had turned into the piano lock (singular) in the manual. It does have the gear covers though, and one thing I've noticed is that the tool covers are a little bit shorter than they were on some older versions, to allow for the 1/4 inch socket driver to lock at the 90 degree position.
I like the tool I just think SOG could easily improve it.
Like Lynn, I break mine out once in a while, specifically for plier-intensive tasks, but that's about it.