i find my SW potato wedges cook quicker than frozen ones.
i put the oven on high and cut the spuds up then stick them in a plastic bowl and microwave for around 5 minutes - give them a little shake half way through. then i chuck them on a pizza tray with frylight, bbq & fajita spices and bake them unti they're ready... this takes 5 - 10 minutes, depending on how thin i cut the wedges.
i find par boiling them takes forever, but by microwaving they're already cooked inside and just need crisping up in the oven.