Andria, I just discovered this past week with a new juice from a new store in town that is 60/40 PG/VG, that my chest tightens up after vaping on it. I normally vape 70/30 PG/VG and have no problems. It's a shame as this juice is some of the best tasting I've found; and if I dilute with PG, will also dilute the taste. I do not have asthma or any breathing issues at all. Think I'll ask the store if I can change the ratio. 
Otherwise, I've not been disappointed by any hardware I've bought (MVP, ProVari, Vapor Shark); and all my juices purchased locally so I can try them out first. I recoil and rewick my PT 2's and Davides and have managed to turn them into Nauti's by using an airflow controller, adapter extension ring, and the NON Nauti replacement BVC's.
Also have had the Nauti (5 ml and mini) for 3 mos. and today experienced my first flood. Took it apart and found I went beyond the useful life of my coil. User error.
Put a new coil in and was set for the next few days. My occupation is now vaping and I do put quite a bit of juice per day thru my coils.
Don't know if it's ignorant noob luck or a lot of researching here.....probably both, but I've never gotten frustrated or mad that something wasn't working right. Always figured it was something I did if anything went wrong which usually involved the coil and wicking......which is my first line of attack. New coil!
Otherwise, I've not been disappointed by any hardware I've bought (MVP, ProVari, Vapor Shark); and all my juices purchased locally so I can try them out first. I recoil and rewick my PT 2's and Davides and have managed to turn them into Nauti's by using an airflow controller, adapter extension ring, and the NON Nauti replacement BVC's.
Also have had the Nauti (5 ml and mini) for 3 mos. and today experienced my first flood. Took it apart and found I went beyond the useful life of my coil. User error.

Don't know if it's ignorant noob luck or a lot of researching here.....probably both, but I've never gotten frustrated or mad that something wasn't working right. Always figured it was something I did if anything went wrong which usually involved the coil and wicking......which is my first line of attack. New coil!
