Plyometric squats

They're all the rage, or so it seems.  My new trainer had me doing them with a Bulgarian Sack in our first full session and this afternoon, in the gym where I used to train with my old trainer, I found two trainers doing them with 2x28kg dumbbells.  Despite neither of them being my old trainer, they persuaded me to have a go and with 2x16kg dumbbells.  I managed 6, 8, 8 without huge strain and I reckon I could have done better by myself.  Oddly, I find that I need to try something by myself a couple of times, without an audience, before I can really get stuck in to it.  This does not seem to apply with my new trainer though, which is good.  He manages to really push me without me having the oddness I usually have.