We have a large classic that we use with terries or a thirsties hemp prefold. Ds does sometimes get faint red marks on his v chunky thighs on the biggest thigh setting
but nothing surprising. We have had wicking on it the last 2 times we used it but it's been bombproof with the hemp till now, I'm gutted! What do you use in them? (sorry am on ipod and can't see if you said) maybe it needs more boosting? That's what I'll be trying on ours anyway!