I thought you were using the stick as a counter weight to dampen vibrations. That's not a Finnstick then.
A conclusion I reached after these experiments:
Between Noctivid, SF, NL
If you want 8x, get Noctivid or NL
If you want 10x, get SF or NL
8x SF if you want maximum stability. 10x noctivid the least stable.
The extra length will make big difference to stability.