Including saturating the coil I was able to fit exactly 5ml of juice in.
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The two sections below cover my normal testing procedure and preface.
I feel this is important information to include so you know what I do to ensure I test every one the same way.
It also provides you info on MY particular juice because it more than likely is different than yours so it can/will have different results.
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Airflow wide open for both coil tests.
Before testing each coil, I ensured proper saturation as well as break the coils in by starting at lower wattages and temps.
I vape at these lower wattages, slowly increasing and I vape though half to a full tank fill depending on what the coil needs.
Once the coils are properly broke in I start my tests.
For each wattage setting I took 10 casual pulls taking them as I felt the need.
Followed by 10 chain vape pulls to check for heat and flavor changes.
I Wait 5 minutes between each setting (allowing the coil to cool) to ensure I get the best the coils can produce.
After documenting all notes through this process, I proceed to vape through 240ml of juice for each coil to check coil life.
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This may not seem news worthy to some but since high flavor percentages and really sweet juices kill coils, I check for it.
Mostly because I use 25% flavor of super sweet DIY juice and go through about 45ml per day.
My juice is a well-known coil killer.
Generally, I get only a few days out of coils so I'm always in search of the few that can last though my particular juice.
Clouds are clouds, I could care less.
Flavor on the other hand is where the importance to me is so that'll be my main objective.
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Starting with the KTR (W8) 0.15Ω octuple kanthal coils:
50 - Some flavor, not bad but a tighter draw than I am normally after.
60 - Minimal change from 50
70 - Flavor slightly increasing. Vapor had a huge increase.
80 - More flavor and the tank is getting fairly warm. The vape is only slightly increased in temperature.
90 - Minimal change from 80
100 - Not sure this works for my particular style. 100 watts on a real tight draw isn't quite my thing.
110 - For a single hit or two, this is almost ok but as I said with 100 watts, it isn't for my particular vape style.
The tighter draw works fine at lower wattages for me but not so much in the higher range.
(that might be why they labelled it as "Best 60 - 80")
I found 85 watts produced the most amount of flavor for the amount of airflow this coil has. (for me)
So, I continued to vape through 240ml.
Moving on to the KTR (W2) 0.4Ω dual kanthal coils:
30 - Just a touch of visible vapor but no other signs that I was actually vaping.
35 - I'm finding it obvious the coils just aren't getting enough power to heat up.
40 - Starting to get just a bit of flavor but the vapor production certainly had no trouble increasing.
50 - Flavor really picking up but not quite where I like it yet.
60 - Flavor still increasing some and surprisingly so is the vapor. Who knew this little thing could produce clouds of this volume?
70 - Oh I am liking the flavor now. Base of tank starting to get a little warm but vape temp staying put.
80 - When the coil is cool this setting would be right where I'd want it.
Once the coil warms up (about 10 chain vapes) it seems to lose a little flavor.
Allow it to cool back down and you'll be right back in greatness.
Cloud production is about 75% of what I get from the Aromamizer Plus with dual Alien Claptons @ 100 watts at 0.12Ω
90 - This is just a touch outside the capability of this coil, not burnt but tasting like it is headed that direction.
I found 78 watts produced the most amount of flavor. (for me)
I continued to vape through another 240ml.
I did NOT close the air flow during tank refills and id did NOT have any negative results.
Wicking had no trouble keeping up.
No leaks, no condensation.
When I reviewed the Frogman pre-production and Frogman post-production I stated I wished they made a version of this tank that would hold 5-6ml of juice, they have come through and made it so.
Awesome job Vaptio.
The Frogman XL Tank on a few other mods:
Smok Majesty
Smok ProColor
Smok T-Priv
Ijoy Captain PD270
Sigelei SnowWolf 218
Smok GX2/4
S-Body VapeDroid C3D1
Smok Alien
Smok X Cube Ultra