I've been playing with a hall effect twelve inch drum and got a £9 single ply replacement head.
This new head has a huge deflection of up to 3cm and as the deflection on hard hits is *so big* it has buggered my design (which has a total air gap of just 22mm).
I guess that the fibers will loose some elasticity over time by being hit because I think this head is made from recycled water bottles. A fag will burn it just as easily as my shirt.
Is it possible to reduce the deflection maybe by pretensioning these cheap plastic heads somehow?