aegis solo problem (maybe)

Hi,after quite a few years being a trusty vamo fan,I decided to pull myself kicking & screaming into the new era & purchased a aegis solo 100w mod.Have only had it for a month & a bit & was well pleased with it.Unfortunatly,it has started killing my coils really quickly.
I am using a protank 3 & 1,8 ohm coils. usually vape at about 5w.I always leave the new coil to soak a good 20 minutes before vaping.
I first noticed a couple of weeks ago that I was changing out coils every 3-4 days (was not doing this for the first few weeks of purchase) & now I've just had a coil die in less than a day.
I've checked all dead coils on another set-up to verify that they really are keffed.
Has anyone else encountered this problem?Do I need to think about a different type of tank?any feed back or help would be appreciated,thanx Chunkystan

 

5 w seems to be the lowest I can go.With my vamo(s)I used to vape the same liquids,coils at a higher rate of 6-6,5w for the same hit that I get at 5w with the solne bonus I've noticed with the solo is that my batteries are lasting twice as long as the vamo.Wouldn't mind getting to the bottom of the coil killing issue though.Was wondering if some kind of milli second power spike is happening somehow.

 

OK,so a little update,I contacted my supplier of the device,explained the problem & they said that i should be vaping the 1,8ohm kanger SOCC coils at minimum of 9w & that my juice has a too high ratio of VG. I always vaped the same coils on my vamo at 6-6,5w with out issues but it's true that I am using a different type of juice now,so who knows.I will up the wattage & change for a lower VG content & see how it goes.Every day is a school day