I have used the M4 coils and both burned out in under a week and were complete trash, and then i bought a mesh coil which was good for about a week tops. Are there any other coils for the prince tank which would work with the stick prince? Im hoping to find one that lasts at least a few weeks without needing changing. I prime my coils very well and do not chain vape, and my juice is 70 VG 30 PG, candy king brand.