Hi All ,ive been lurking here for some time and have decided to make a contirbution .
I personally raise pps in all positions, as I see it there are good and bad things about raising with them in early position.
On the plus side :
1 Everyone folds and you pick up the blinds.
2 you build the pot if you hit.
3 you can Cbet.
4 you are adding to your range in EP which will make it more difficult for your opponents to put you on a hand.
On the negative side :
1 You may get 3bet and not have the correct odds to call.
2 You are likely to be out of position , and few flops that miss will look attractive when cbetting.
As for open limping , at micro stakes you will get away with it but if an opponent who I don't think is an idiot limp/calls in early position the first hand i think of is PP.