Hey guys, Ill keep this short and simple and see if any of you might be able to help me out. Im looking for a pen that I can use e-juice carts with, as well as different oil carts. Would the persei be a good option for this? It seems well built and can take all 3 battery types and has the 510 threading I need, along with dedicated oil carts and if Im not mistaken I can use other companies oil carts as well? From my understanding I just need to match the battery with the carts for proper power usage. Im looking for the claimed 100 hits off .4-.5 from persei. Something that is highly efficient. Would it be cheaper and easier for me to just go the persei route and get everything all at once or should I seek out a mechanical mod with the same 3 batts that is accepted in the persei. Id say I have around 150-200ish to spend but would prefer to keep it under that.