OK, made a bandset and also tested the draw weight plus thickness.
The 0.02" is really 0,4mm, exactly as thick as TB Black. The 0.025" is 0,6mm, exactly like TB Gold.
So I made two bandsets, one from the thinner material, cut 15,4 (full width) to 9 cm, and one with three times 2,8cm x 1,8cm. Active band length is 28 cm in all cases (full butterfly).
The draw is very close, if not equal to TB.
Can't wait for the weekend!