Over the past few weeks I've tried three or four different cart fillers with varying degrees of success (failures really)and over the past week or so I've tried the Pyramid Tea Bags which seems to be a popular choice across the forums.The only thing TBH is I don't have the patience to mess about cutting & folding etc. So I bought a pack of the little roll up tips yesterday & after the initial trimming to get the right ammount in without clogging I've had a real success with them,I just wondered if anyone else who has has tried them has had any problems longer term ?