>>64048856
There are tons of knives with ambidextrous locks (all the crossbar and mid/back locks) with 2 or even 4 way positional clips, seems silly to stick with strictly left hand ones especially since I (and you apparently) can only think of Spydercos that do that.
>>64048771
Offhand I can think of Boker, Kershaw and Cold Steel that have ambidextrous locks and 2+ position clips. I'm sure there are lots of budget brand knives (Civivi, etc) with crossbar locks that also have reversible clips, I just can't think of any off the top of my head.