I have a total of 7 syringe mods that I did a little experiment with all last week and this is what I have seen.
The R3.5's definately turn the juice a funky color in a short time! Still work good but dark juice. The R4's do not! I did a dry burn after each empty tank and never got a bad taste. I used the existing wicks on all of them and never got the dry taste. I plan on using the PTB but didn't want too many variables in this test. Overall, I think the syringe mod delivers enough to make me happy as my all day vape.
Yesterday, I decided to clean alll of them. Took the syringe off each, ran under hot water for about 10 seconds and found that the coil goes red almost immediately after wet with water. The dry burn took no more than 10 seconds as well. I dried the wicks with a paper towel, added juice and just like that, it's better than brand new! Used one all day yesterday and couldn't be happier. I think I'm going to try rinsing and dry burning after each tank, maybe 2. I love my syring mods!
The R3.5's definately turn the juice a funky color in a short time! Still work good but dark juice. The R4's do not! I did a dry burn after each empty tank and never got a bad taste. I used the existing wicks on all of them and never got the dry taste. I plan on using the PTB but didn't want too many variables in this test. Overall, I think the syringe mod delivers enough to make me happy as my all day vape.
Yesterday, I decided to clean alll of them. Took the syringe off each, ran under hot water for about 10 seconds and found that the coil goes red almost immediately after wet with water. The dry burn took no more than 10 seconds as well. I dried the wicks with a paper towel, added juice and just like that, it's better than brand new! Used one all day yesterday and couldn't be happier. I think I'm going to try rinsing and dry burning after each tank, maybe 2. I love my syring mods!

