Cubo15

Hi Cubo and community

Being reading my way through your forum and appreciate your work. I have an Ande LB1560 with the following specs

FS 42.5
QES 0.35
QTS 0.33
QMS 8.97
Vas 133.1
Xmax 11mm

I'm going to make the Cubo15, but should I use the extended or extra extended as the Vas is below 150 litres.

Thanks