Hi David! Welcome to the Forums! Glad to have you aboard.
Can't help with the tank tracks, but if you go to the "Armor" section of the Forums you will probably get more answers than you need. The members there are very knowledgeable and ready to help out with any question or problem.
Good luck and look forward to seeing your work.
Jim
Main WIP:
On the Bench: Artesania Latina (aka) Artists in the Latrine 1/75 Bluenose II
I keep hitting "escape", but I'm still here.