...a KR808 cartomizer around 4ohm?

[Skyway]

Any sellers selling KR808 cartoz around 3.9 to 4.2 ohms? I got some from FSUSA and they were not listed for any kind of ohms and I have found that they work rather well in my V3 at 6v but only if they are closer to the 4ohm instead of the 3.7 and below. I would not normally think that .2 or so ohm would make that much of a difference but it seems too. Plus I think my V3 at 6v is really pushing around 6.4v. The pack of 5 I got from FSUSA were ranging around 3.6-4 ohm and I would like to see if I can actually get some somewhat guaranteed for around 4ohm or so.
Are their even cartoz and atty around just 4 ohm or would I pretty much have to look towards the HV range?

 

[Firefly13]

I've never seen any, only higher resistance i've come across is about 3.3 to 3.4 ohms.

If 6v is too much then why not get a 5v regulator adapter from Nhaler for about 20 bux, fits between the atty connector and the cartomizer.