Spot on my Brother...I wouldn't spend S. Bang money for a filter pipe unless I planned on using a filter.
Exactly, I haven't seen a lot of variation between the size of the draft hole in either style of pipe, and even then most of my filter pipes end up with a 3/32" bore at the button. Finding something that even maintains 1/8" to the button is extremely rare.the hole in the bowl is still the same size.