I've got the 510 disposable kit with the 24mg menthol. I'm not sure if it's because it's a disposable kit or I just need a stronger nicotine, but I can only get a tiny throat hit only at the first time I take a drag from it. I've checked a few sites and they only go up to 24mg. Anyone know of a site that sells something stronger? Or is there another flavor out there that kind of taste like menthol. I would like to order from some place in the USA.