Welcome to the forum!
I think the Military is the perfect large folder and my favourite folding Spyder so I’d say buy one, but, if you favour the PM3 over the PM2 … I don’t know.
I bought a PM2 first and even though the knife is absolutely perfect in every regard it just doesn’t float my boat. When my first Military arrived I thought it was huge but I put it in my back pocket as advised by one of the members here and that was it. I’ve got one in my back pocket or work bag most days.
A few months back I decided to give the PM2 another go and when I opened it I had a little chuckle to myself wondering where the rest of the blade had gone.