I have two 150Gs now and the strung specs are quite similar: The first 'L4' is without the original leather grip, and just 2 OGs (370g, 33.25 balance). And the second is with the original leather only at 378g, 33cm balance. So both just over 13oz strung and 4pt HL, strung with factory I assume, Super Lastek. That syngut is mentioned as an option for factory stringing on the contemporaneous Maxplys. Still has reasonable tension, LOL!