The Crown is the most 'sensitive' tank I've used. Had excellent flavor but leaked. I fixed the leak and the flavor drops out, even in my most flavorful of juices. Kinda getting a burnt hit at times on the .25 at as low as 60w.
Awaiting an IPV3 Li to try out TC to see if that improves anything.
@ailgaz I will try the hole poking when I get home from work. Would you say a safety pin would be thin enough?
I've been using the Crown and the Herakles for a few months now. I've used all coils available and have my favs.
For the Crown, (on a IPV3 Li) I am really liking the Ni200 coil at 40J and 402F with juice I made. (recipe below)
Huge flavor and enormous clouds.
For the Herakles, (on a iStick 100) I'm using the .6 coil at 45W with same juice.
Same clouds but more flavor.
If both tops were top fill like the Crown, I'd only use the .6 on the Herakles because it has a bit more flavor.
I love the Crown for all that it is plus the top fill but with all the combinations of coils, temps, and wattages I have tried, nothing produces more flavor than the Herakles using the .6 coil.
Although, the Crown has a bit more airflow and is a bit more quiet.
If I could put the top fill and air flow on the Herakles using the .6 coil, I'd buy 10 of them and a truck load of coils.
The Herakles has a 3ml tank and the Crown has a 4ml tank.
Since I go through 35 - 40 ml per day, it doesn't matter what tank I use, I am refilling too often either way.
As for the leaking on the Crown, I have found that the little whitish/clear O-ring on the coil is sometimes not rolled all the way up the threads where it needs to be, causing leaks.
I first thought it was just a few bad coils but after further investigating, I chased it to that O-ring.
Hope this helps someone.
Nicotine 100 mg (100% VG) 2.4 %
PG 19.0 %
VG 50.0 %
Grape Juice (TPA) 7.0 %
Grape Candy (TPA) 7.0 %
Strawberry (TPA) 6.0 %
Bubblegum (TPA) 6.0 %
Sweetener ECigExpress 3.0 %
(I tend to like my vapes a bit sweet)