Good point - It would definitely depend on the opponent; In cases where my opponents are tight, I think I can fold as long as they only things they're shoving with are overs and higher pockets, but if I think they have just high cards, I might call - As you said it's more vital to have reads than ideals about what to do in certain spots.

If my read was that the person wouldn't put it all in unless they had it, I could fold - I wouldn't like to though, and I suppose that's what bothers me about having QQ or similar (I want to/think I should fold sometimes, but I convince myself to call or else don't call, but it never feels like the right decision (no reads is probably the cause of this - Also it's probably as much to do with learning as with any other factor)

Thanks for the advice, it was very helpful - Would love to hear from anybody else with their opinion about the situation as well.