Three or so months back from the time of this writing, after having used dual coil cartomizers exclusively in my tanks, I had become somewhat dissatisfied with them with an occassional burnt taste in with my e-liquids. I was quite certain that the juice delivery to the heating coils was adequate, so I ruled that out as the reason. I wondered if it was a good time to try some single coil cartomizers in my tanks, so I did some personal research into dual coil vs single coil cartomizers on ECF.
What I found were opinions. Many people had switched from duals to singles, arguing that the dual coils didn't produce enough benefits to warrant their extra drain on battery life. There were others that preferred dual coils, of course. There were statements made that dual coils were developed to be able to provide more vapor production for fixed voltage PVs, via twice the number of coils within the cartomizer. However, there were skeptics to that statement who claimed that for a dual coil to really shine, voltages of 4.5v and higher were required. Contradictory theories? I thought so, too.
Long story made short, I decided to give single coils a trial. I switched out all of my dozen or so tanks to single coils...same brand, same ohm resistance, same number of holes. The verdict: I was and am impressed with the single coils. Same vapor production and flavor,
no more burnt taste, and the expected
increase in battery life. Your results may vary from mine.
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Since many newer vapors are just getting their first tanks or thinking about it, I'll provide a limited list of vendors below that sell pre-punched cartomizers that are ready to be pre-filled and put into a tank. This listing is in no way meant to be a complete one, but merely provided by me to assist new and old users alike with options to choose a vendor of their liking. The are listed in no particular order, and some details of interest of each vendor's offerings may be included.
I personally recommend beginners buying pre-punched cartos because they can provide them a level of consistancy in the size and placement of holes without needing to learn a new skill of punching their own, and using these removes at least one of the human error factors in the equation in using a carto tank for a beginner.
Once one has some experience with cartotanks, they can then decide to obtain a punch tool and learn to punch their own. Alternatively, they can also learn to slot them with a powered dremmel tool.
I've been using cartotanks pretty much exclusively for several months. I have tried both punching and slotting my own cartos. I've personally found making my own holes to be unsatisfactory for me for a couple of reasons and have returned to buying them with holes made by the manufacturer.
Suggested listing of vendors that sell pre-punched cartomizers for tanks:
Ikenvape https://www.ikenvape.com/SearchResults.asp?Cat=1860 Standard size and Mega (XL) Platinum laser-drilled 2 hole for 510 thread. Standard and Mega Fusions laser-drilled 2 hole for 801 thread connectors (will need a 510-to-801 adaptor to use on 510 connector devices).
Smoktek Tank Replacements Tank replacement laser-drilled cartos in 510 and 808 threading. Single and dual coiled. Choices of hole # and resistances.
IBTanked https://www.ibtanked.com/accessories/cartomizers
Pre-punched cartos for XL tanks in single & dual coil. Un-punched standard size Boge cartos (vendor sells a punch tool). Also sells CE2 pre-punched cartos.
Valley View Vapes Boge Cartomizers Standard and XL length Boges, in low and standard resistances. Vendor offers you the option of having your cartomizers pre-punched and tested by him to insure they are within spec for the resistance. Eliminates the chance of getting a DOA carto. Fee to both punch and test is $1 per 5-pack of cartos.
Electronicstix ElectronicStix.Com : J-TANK PUNCHED 510 CARTOS Choice of single laser-drilled or tool-punched holes in Boge standard or XL lengths. Low and standard resistances.
Discount Vapors Cartomizers - DiscountVapers.com Only offer laser-drilled cartos in the XL length. Resistances from 1.7 - 5.0 ohm in choice of 1-2 holes.
Sweet Vapes Boge 2 laser-drilled holes in standard and XL lengths. Dual and single coil Smoktech with 2 laser-drilled holes in XL length.
I highly recommend all cartotankers to obtain a tank accessory tool. IMHO, the
Slap-Yo-Momma tank tool from Big Daddy Vapor is the best designed one. Watch the following PBusardo video review to learn how this tool can protect your tank's o-rings and makes filling your tank with juice easier than pie.
