I decided to get myself some clones of some popular drippers and do some practice modding to BF. Here I have a Mephisto clone and a Quasar clone which I modded in two different ways
Modded dripper to BF
I first marked the center positive post of the Mephisto where I want the juice hole and then removed the post from the dripper and put it in the clamp under the drill press. I drilled it from the bottom up as far as I marked it.
Modded dripper to BF
Now this particular dripper has probably the thickest posts I've ever seen on any dripper so I decided to try notching the post on each side with a dremel wheel instead of drilling straight through for juice to come out on the deck each side. This actually proved to be a really good idea because it was much easier than drilling.
Modded dripper to BF
Works really good and supplies an equal amount of juice each side of the deck and drains back to the bottle great
I removed the center post of the Quasar which was solid SS after measuring and set it up in the clamp in the same way. I found that this post was really hard to drill even with cobalt drill bits so I decided to notch it instead of drilling.
Modded dripper to BF
It was very easy to notch with a dremel once I had it clamped in the bench clamp. Gave it a light sanding after I notched it and re-installed in the dripper.
Modded dripper to BF
This too works great and drains perfectly so frankly the notching way of doing the conversion is much easier with just a dremel and a clamp than drilling.
I've ordered a Plume Veil clone as well to convert which I'll put up for you when I get it done.

I first marked the center positive post of the Mephisto where I want the juice hole and then removed the post from the dripper and put it in the clamp under the drill press. I drilled it from the bottom up as far as I marked it.

Now this particular dripper has probably the thickest posts I've ever seen on any dripper so I decided to try notching the post on each side with a dremel wheel instead of drilling straight through for juice to come out on the deck each side. This actually proved to be a really good idea because it was much easier than drilling.

Works really good and supplies an equal amount of juice each side of the deck and drains back to the bottle great
I removed the center post of the Quasar which was solid SS after measuring and set it up in the clamp in the same way. I found that this post was really hard to drill even with cobalt drill bits so I decided to notch it instead of drilling.

It was very easy to notch with a dremel once I had it clamped in the bench clamp. Gave it a light sanding after I notched it and re-installed in the dripper.

This too works great and drains perfectly so frankly the notching way of doing the conversion is much easier with just a dremel and a clamp than drilling.
I've ordered a Plume Veil clone as well to convert which I'll put up for you when I get it done.