Need one for my 901. I have been trying to use the LR cartos from Ikenvape, and just not having any luck with them. The problem, I think, is that they dont let the liquid wick down well enough and sometimes the hole in the center of the packing closes up. I have tried a lighter colored liquid than the Wyatt Earp I have been using with the 808's. Is there a good wicking LR carto out there, and maybe one with a tube in the center to keep the hole open? Thanks. 
