I am running 510 cartos with my Blu. I have some things to say about it. No, too bad they dont fit in the pack. I carry them like I do my juice bottle. If I am not running the carto, I use either a 510 atomizer and a drip tip or the original atomizer with a drip tip. I don't like having to buy stuff, so I use the original equipment as best I can. Free replacement for a year on everything. Attys, Batts, you know the drill.
If I am dripping through the drip tip, the 510 atty and drip tip take up two slots in the PCC. The standard atty and drip tip fit into one slot. That leaves when I go out... 3 blu carts filled, one 510 atty and drip tip, one regular atty and drip tip attached to the battery assembled, then the charging hole for the second battery. A bottle of liquid and a carto in my pocket. Plenty of
vaping to make it for several hours.
As far as cartos leaking into the battery, remember to carry the carto topped auto battery carto end down. Don't over-fill.
As far as drip tips and screwing up a battery, once again... don't overfill. Two drops and no battery issues. any more and you flood the battery, as well as flooding the atty. If the atty gets flooded, you end up drawing more and harder to vape. Not good for me. I don't want to have to work that hard.
510 batteries haven't been that good for me, I can't get them to last physically as long as the blu batts. The only Blu batteries I have ruined, I believe were bad from the factory. They just were acting up from day 1. I do like the manual batteries sometimes, but the autos seem to be best for my normal environment. I have never had any go off by sound, but they are definitely air pressure sensitive. You can drain them quick while driving a motorcycle. Way too much air pressure differential.
That is what I can add to the conversation, hope I helped someone out.