Coil wise i have been using lately the Cleopatra from Lady Vapes (ALIEN TRICORE +-0,11/0,22 ohms) 3mm in size.
Juice wise i haven't made any changes,sticking to my usual 70%VG/30%PG and 3ml of nic.
To be honest didn't even think it was an e-liquid related issue,i mean if my other attys can handle that ''normal'' ratio and they cost 1/3rd of the price of the Juggy MR there is no reason for the Juggy MR not to be up to par.
Either the gaskets were faulty or the other possibility is bad machining on the top cap,can't be heat reaction either because i vape between 30w and 36w,not a fan of hot vapes and at those wattages are my sweet spot.
Thanks for the link,will bookmark that one for possible future use