nah a lb is easy to sling.
Yeah I was the one sending a golf cross ball around the world - I have no idea where it ended up and as far as I know no one ever made a mould out of it - which was kind of the whole point
They do fly very straight. Not as far as you'd think - they're not quite as dense as ordinary golf balls.
I believe golfcross was invented in new zealand, and it's a few years ago now.
CHOT uses golf cross balls - not heard from those guys for a while.
I can make a perfect biconical 2 part plastic mould pretty easily. But until I really get to grips with openscad, adding the dimples would be difficult (I'd have to add each one with it's own line of code).
I was thinking of adding a groove for copper wire to make it easy to recover from a beach with a metal detector. For distance slinging.
I've got some air dry clay - You could easily add dimples manually before it dries. I'm in the workshop today - and I picked up a new aluminium printbed yesterday - so geraldine can now be properly calibrated.
I'll have a bash at knocking up a glande mould
Soon as I've printed out a new handle for the motorhome gtech electric sweeper