Tried the marineland blue foam wedge mod...

[TheLordWinter]

... in one of my 510 cartridges and I love it! Cut the little wedges like Cozzicon demonstrated in his youtube video and WOW. Instant improvement over the poly floss that comes standard in the cartridges. It wicks almost 100% faster than the batting in a stock cartridge, letting me draw a lot more often without getting the burned atty taste. This might be just what I need to kick those last few analogs I smoke each day. It should also cut down on the amount of waste fluid that doesn't get wicked up from the bottom of the cartridge, too.