marlinspike wrote:


Anyways, couldn't it be argued that a piston is the best filler? I mean,
sure it doen't insulate as well, but I have never heard of the walls of a
pen deteriorating like a sac can.


Couldnt it also be argued its one of the worse fillers? No insulation.
The slightest hairline crack means a major probable leak and a useless
pen. If you havent heard of the walls of a piston filler deteriorating
you havent heard much about some Omas pens.

So what about a sac going bad since piston gaskets go bad too? Frank