Some SW members tweak, which is using a free food in a way that isnt intended, like smash as a coating for chicken or as a pizza base, or there is a recipe for a 1 syn roulade (not sure how they make that) or couscous as flour in a cake, and a few other bits and pieces that when used in a way it isnt intended should be synned but they dont and it doesnt effect their weight loss. I personally cant do that, I lost nothing the week I used the "tweak" recipes and that was the only thing different. But, as I said, alot of members do.
But I do tweak in the sense that I dont syn cooked fruit. I know I should, but I dont. Its my choice and I dont do it often and hasnt effected me yet. If it did I would stop doing it, as I would know where I went wrong.
I think its up to each individual person what they eat, and even tho when I eat cooked fruit I know I am not following the plan 100%, its my responsibility!