Some general numbers for these tops with tips installed.
nominal overall height is about 6.3 inches (160 mm)
nominal maximum diameter is about 4.7 inches (120 mm)
average weight is about 313 grams (0.7 lbs) but extends over the range from 272 grams to 353 grams which is a variation due to how much material I packed into the mold. The earlier tops are lighter.
I've finally cut one top in half to see the distribution of material inside. The balance on this one was quite playable but there was a significant vibrations and a noticeable visual wobble. I marked the "high" side of the wobble while spinning with a sharpie and made the cut across that spot to the opposite side. One side is noticeably thicker than the other and a clear lack of symmetry is seen where the tip would be installed. I suspect that for this example the collection of extra material all on one side is coincidence and that on others the distribution might be more randomly spread around.
The inside surface is fairly smooth but there are some small shallow voids (hard to see in the picture). The material exposed in the cross section is well merged and should provide a durable top.