Does anyone think these have a stiff draw to them on an Ego?.. If I put a 510 extension on the Ego it gives an easier draw. and lots more vapor. I wonder if a small hole was drilled in the bottom meal ring if it would do the sam as an extension?
Yes, and maybe. It very much depends on the specific battery.
I've found the airflow can be restricted in a couple of ways. Some batteries have more eGo threads than others. For those, a small hole as close to the
tank as possible helps. Airflow can also be restricted if the positive post on the battery is pushed in some. For those, you can pull the positive post of the carto out just a LITTLE with a small needle nose.
I have 3 different eGo type batteries, Joye, 650 mah with led from Litecig, and 1100 mah with led from Smoke anywhere for pennies. The 650 was stiff as a board. The Joyes, are OK with a hole drilled in the carto. The 1100's work perfectly as is.