Hello,
I have recently purchased a Chris foss WOT 4 classic. I am about a quarter way through the build and have a few questions. Will a 9oz tank be big enough for an OS 40LA and will t give me much time in the air,or should I fit an 110z SLEC tank?
Also,how will i cut the grp cowl?i cant imagine a scissors or coping saw doing it any good.

Any suggestions?

Thanks in advance,
Hakko