First 3 pulls were huge flavors, after that is has tamed down. Normal?
Depends, was the wick totally saturated from dripping on the coil? You may be chaining without allowing the wick enough time to redistribute the juice to the coil.
With a high watt build and small reservoir you could simply be burning most of your juice in 3 pulls.
With 20 watts I get around 15 full flavored pulls on a magma (a big reservoir flavor oriented dripper). I usually give it a few minutes every couple of pulls to allow the juice time time to wick.
So it isn't normal? Flavor should be same from vape 1 to 100 minus buildup ?
its a deep well (big juice res) atomiser so its not the juice supply.Pics and build info would be helpful. My bet is poor wicking due to either too little or too much wick. My thought is when you dripped, you directly saturated the coil. 3 pulls @ 15w would be about enough to "dry out" the saturated coil, and if the wick doesnt have good contact (too small), or is choking (too big), it wont replenish the coil sufficiently.
Did the flavor come back after dripping again?