Empty powder, scuff up sides of well with sandpaper or gouge with screwdriver.
Use #10 [3/16] eyebolt, using a bit of pressure pushing EB in screw it down till you hit top of delay. I never needed to tap it, you may??
Do NOT screw through the delay. I actually have a nut on the EB to grab the epoxy. Don't tighten it, let it float so epoxy can surround the nut. Enlarge the pic and you can see the nut embedded into the epoxy. [just to be sure]
Fill BP well with 5-10-15 minute [whatevers on hand] & go fly.
When done, pull the closure out of liner, lay on it's side over hard surface. Give the side a couple of whacks with a hammer to crack the epoxy, remove EB for use again. [if your cheap like me lol]
Been doing this for 4yrs now. Works great and has Dr J approval [when done correctly!!!]
Simple fast & cheap. No need to buy any fancy stuff. Total cost about .60 cents