OnePlus Watch 2R stand (with hole in the back)

I wanted a stand for the charger to hold the watch in a convenient way and I found this model that works just fine. I printed the one with a hole in the back so you can easily get the charger out from the print. now on mine the hole for charger has a loose fit so I doubt it was needed with the hole in the back.

Anyway - I added a blocker shape in Orca Slicer, setting 0 infill in the base - reason I want to fill this one with some weights to have a solid, stable base.

I have 4 perimeters, walls and bottoms to make it sturdy as the magnet in charger is quite strong and I want to grab the watch with 1 hand...

This worked out perfect - at last layer before my 4 tops I set a pause command so Printer knows what is going on.
But It turned out I set a change filament so it went and cut it off and backed it out :D - no problems though.

I used various lead weights from fishing, whatever could fit inside my cavity, I had lots of smaller ones that filled gaps between bigger weights - then resume print for the remaining 4 layers