Hi, when making sw chips it doesn't matter how much fry lite u use. If making in oven par boil potatoes, drain and shake dry which fluffs the edges place on baking tray sprayed with oil and then spray over potatoes and place in a hot oven and cook til nicely brown.
However I bought a tefal dry fry and you can do lots of foods in it. It is a bit pricy butnwell worth it.