what is your best cord size?

Hi All MYOG mate,

I m going to ordering some Dyneema with protective sleeve cord.

Available size are:
0.95mm 1.1mm 1.3mm 1.4mm 1.5mm 1.9mm
weight almost 1m to 1g ratio.

Would like to know what is the best size for Tarp or tent as a guide line and what is the best size for a draw strange on the sack ?

Ideally for my Pyramid and the sack for the pyramid!

Cheers
Jason