Hi WhyByFlyer,
Thanks for your kind reply, and for not taking offence at my somewhat robust remarks, which I hope you realise were not directed at you personally! I'm glad to hear that you fly regularly in manual thrust (and that your airline permits it).
Looks like the engagement criteria for Thrust Lock must have changed in the way you describe. A frustrating trawl through the 'net revealed only the logic I described in my post, and my manuals are at least 12 years out of date...
Re the aftermath of a windsheer event, with the speed going "berserk", you say:
"There is no recommendation other than to 'keep the automatics'. It was a 'tip' from a TRE in an LOE and it worked very well. By moving back to climb thrust and resetting ATHR using the FCU pb it all settles down ...... At least it did in the sim."
This coulld make for an interesting discussion. I'm inclined to stick to my general advice that, if the automatics are compromising the flight path or flight envelope, disengage them and do it yourself. TREs are very keen on demonstrating neat tricks on the simulator, because they are constantly repeating pre-programmed exercises with a series of candidates. And simulator motion systems are incapable of simulating severe turbulence realistically. I agree with the spirit of your last sentence above.