Durring my week off (which was surprisingly productive!) I was thinking about this, and the heavier fill option to me while holding some merit wouldn't realistically work in practise.
A heavier fill means more raw ingredients needed, im assuming that somewhere along the way to make it more profitable, certain items are "watered down". A from a business perspective mass producing paint to be used on the feild would invlove maximising how much watering down you can do. Eliminating the heavier fill option.
The standard paintball, as you shoot it undergoes various laws of physics, now simplified down, I would imagine they go something like this.
- Ball accelerated, shell deforms slightly, paint inside the shell gets pushed to the back.
- Ball leaves barrel, shell stards to snap back into normal shape, spin is caused by this, some paint on the inside of the shell moves with the shell, however the majority of paint just sits there against the back of the ball as a blob.
- Ball flies through the air, wind resistance, other factors kick in, due to the majority of the mass of the paintball not spinning, the accuracy of the ball falters.
A flatline would i guess force the ball to spin faster upon exiting the barrel, so more of the paint mass is spining with it, but still leaving a lot to be desired.
I do however, believe a barrier inside the paintball attached to the shell would work (imagine cutting an orange in half, then each half having its own fill of paint, attaching them together to make the ball), so rather than having the shell spin and merely rub against the paint, it would have an active "stirrer" causing a centrifuge effect forcing the paint to the outside edge and spinning with the shell.
This would also have the knock on effect of reducing the impact forces needed to break the shell, the central barrier would cause weak points where it connects to the outside shell, so when it hits it would be more likely to break on these points.
Implementing this however, is something for those clever boys to work out, if possible at all.
Then again, maybe not. But the heavier fill option to me seems like a very bad arguement.