Re: Locking Tuners?
I had locking Fender/Schallers on my USA Std Strat....I loved them. I definately think they help with tuning stability, plus they make string changes a breeze. I highly recommend them. Combine them with a graphite nut and you are in business.
The Fender/Schallers should be drop in replacements on your Hwy1, and have the same footprint. If you use annother brand, you may have to drill new holes.