i'd been eager to try stuffers for a few weeks until recently and had been scoping out different ones. The other day I experimented with folded dish towels and microfiber rags in some very cheap thin diapers I've been getting at $3/12. They've increased the bulk to a level I'm satisfied with and am impressed at the way I can assault them with a near toilet-strength stream.
My previous doubling method was to cut slits in Walmart style adult pullups with the result of 2 diapers being halfway wasted instead of just 1 at a time. They left me feeling wet way too early.
Over the weekend I spotted a few bags of Tranquility Topliners for $3/12 and doubled with a standard cheapo (I picked up a bag of Dignity at the same time, the seller said he would do me 8 bags of those for $30 but that's a different topic) and the combination almost has the feeling of being in a beloved Abena M4 though the tapes are nowhere near as good this way, but still, half the price...
To summarize; I am highly impressed with the Tranquility liners and the way they can make a cheapest-of-the-cheap diaper last a few hours as opposed to 1 wetting. Though I may be doing something wrong when I apply the diaper/ stuffer combo; they seem to shift between the time I apply the diaper and the time I remove it.