Can tell you why I like to top fill. (besides the fact I saw it in a 3.1 owners manual) Its quicker when on the fly and working. ten to fifteen seconds and done.
I too have found that the lite + is harsher and easier to flood if toop filled. and for the life of me I cant' figure out why! The only real difference I can find is that the top cap of the chimney is not coned inside like most of the others.
This may or may not be the reason for the harsher hit. But why the difference in top fill flooding, I'll be darned if I know!
KnifeMaker
I know I read someplace that the 3.1 has a resvervoir inside to help prevent flooding. Hands down they are the easiest to top fill. I can top fill the lite plus, abt one out of four times with no leaks. The slight leaking when i do I just blow it out the airhole and it seals.
They do have Kayfun lite plus's out that where the fit is better on the cap, and the o ring recessed in the cap. FC has one, and i love it. Makes no difference tho in the vape. What is the difference in the harshness of vape? I suspect that the fluid to air combustion rate is higher in the lite plus, due to less airflow. It's also due to the fact the 3.1 has two holes horizontally thru the deck, which makes the 3.1 more roomy for air. -- Thus, air would move better in the 3.1 because of the holes in the deck beneath the wick. Which explains why lite plus's pull harder, and sometimes whistle. NOtice some people drill out the airhole on there lite plus's. I like em the way they are, harsher criper vape.
top filling the V2 kayfun, when you think about it, it is sort of against gravity. with the airhole adjustment screw on the bottom, if the screw is open at all, the fluid will run right there. the problem i have had when you blow it out, it doesnt cure it.
oh and Nasca--, check your seals like vapdrvr said. One time i put in a stock polycarbonate middle section,, leak leak leak. Complained here, guy said you dont have it sealed right. I could not figure it out. Then later I discovered the polycarbonate section had no o rings on it. Sometimes they come that way right from the factory. they put the o rings in the replacement bag. If its sealed right, dont top fill it. In the little putzing ive done with my two V2's, when by top filling it sprung a leak, I could get them to seal for a while but then go back to leaking. Dont know why. When you get it fixed, I am all ears. Kayfuns shouldn't leak, that is why we buy em.
