When you do the mod you can never go back. Take all the doser parts out, you will have a small hole in the center of the doser you will have to drill it out. I think I drilled mine to 3/4 inch. This is a pain to do, just take your time. Then just get a small funnel and slide it in the hole, you will want a tight fit around the outside of the doser. A metal funnel is best, I used plastic and get static. You also have to trim the bottom of the funnel so the grinds do not clog it up.