I have been asked about the weight comparisons - my design compared with the available injection molded ones
weights are in metric = grams
Note: not including the flipper rubber which averages about 7.5 grams per rubber
Bats:
Regular Williams Bats with a Logo = 27 grams
Regular Sega Bats with a S Logo = 28 grams
Aluminum Machined Bats (from Pinball Life) = 48 grams
Swinks Design Re-moveable Bats including the fastening screw:
Regular 3" = 32 grams
GB Bat v1 3" = 35.5 grams
so really nothing in it and the weight is mostly at the pivot point so won't have hardy any effect and with the ones I have been playing for a few weeks now - playing really well.
Progress update - currently working on interchangeable lit bats all to fit the standard fitted post without lifting the playfield