G7 ?

G-7 is manufactured in the same way as G-10 the only difference being its strength. It is marginally softer than G-10 but has considerably less tensile strength. It does have two advantages though. It resist heat much better 280vs420 degrees f and has much more compressive strength. Main advantage is its resistance to melting when shaping. From my experience (i used both in high power rocketry another very expensive hobby lol) they are both about equal. If you can find it cheap go for it. Always worth taking a shot with new materials to see how you like them.
 
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