Russ - there are special drip tips made for the Aero BF, even with the same finish and an air control. I have one, but the air control causes condensation buildup in the drip tip and I don't like that very much, so I use a variety of other drip tips.
Unfortunately, 510 drip tips are not really standardized, so it's hit and miss with all atomizers I got. You just have to find a tip that fits. Some of the better drip tip artisans include various different thickness orings to match different size atomizer connections.
Someone said in this thread that the chalice doesn't need modding to work, that wasn't true with mine. The air hole was just somewhere, actually almost hitting a post with its air. I had to file down the top cap to move it to a place where it was usable.
The BF on the other hand has no air hole in the top cap at all, so I could carefully choose and pick an optimal spot.
Construction wise and apart from the air hole and the diameter of the liquid channel, BF and 1st run Chalice are identical, but the higher BF is easier to work with in the feeders I use it on the most (Sunbox E7 Modulo DNA20).
I prefer the Chalice over the BF, but for me it is down to looks - I like the material and polish of the Chalice better than the ceramic coating of the BF.