Until two days ago I had two pipes - one is my Dad's old four-hole Kaywoodie and the other is a Karl Eric half-bent brandy with a saddle bit. I used both of these to smoke Frog Morton several times. The draw on these two pipes seems about the same. The smoke would turn hot and bitey with a bit of ash taste about half-way through the smoke. Being new to this, this I took as "normal". Day before yesterday I purchased an inexpensive, used, half-bent brandy Savinella from my local tobacconist. It takes a filter, but I opted for buying an adapter to use. It has a fishtail stem. Last night I smoked a 5115 Virginia for the first time in it. The draw was much easier/more open than my other two pipes. Tonight I took the Savinella out for a go with the Frog Morton. Again the draw is much more open; was thinking perhaps this was a drawback. But the smoke progressed, and wow!!! Cool from beginning to end. More taste and sweeter without any bitterness. What is happening here? Is a more open pipe destined to provide a better smoke? I do not have the experience to know for certain, but based on tonight's experience I may opt for inexpensive Savinellas with adapters!