My gear is: Joye510 with regular and mega battery eGo 900mah boge cartos I have been told from low heat to high heat production is this progression: 901, 801, 510, LR I have been told that high heat is good for strong flavors like tobacco. Low heat is good for delicate/fruit flavors. This seems to make sense as my tobacco vapes generally taste well but many of my fruit vapes are very weak. So, since I have received/bought many fruit flavors I would like to taste them better. If the above info is correct then a 901 atty might be good to have. (DSE-901 I hope is the same thing as 901) Will a 901 atty work on my current batts? Will my boge cartos work on the 901 atty? Same 2 questions but with 801 atty. Have have read and I see lots of numbers in ohms and volts and model names/numbers are tossed around and it is all so confusing and frustrating since I have only been into this for 3 weeks. If anyone can help answer these questions and maybe point me in a direction or 2 would be greatly appreciated. I just want a generally good vaping experience but I am low on funds. I can't afford to have everything. Thanks for reading and answering.