@superskid
What is an optimised plot?
It is a plot with the stagger size the size of the plot. This means the miner can read the data as it is placed next to each other. It is not a big deal on SSDs, but on a HHD it can make the HHD needle jump from 1 section to the other without having to. Thus increasing seek time.
If you create 1 optimised plot you are reading from one end to another. While it is doing it will send it finding to the pool.
If you create 2 optimised plots instead of just one, it is like creating 1 plot with a stagger size half of the size. Imagine only optimising half the plot (Not really, but you get the idea)
if you are able to, create 1 big plot with a high stagger size it is preferred. Optimising is just making the stagger size as big as it can go.
Edit: If you are more interested in optimised plots, look in my FAQ section. It got pictures!
http://forums.burst-team.us:4567/topic/288/plots-101/3
http://forums.burst-team.us:4567/topic/288/plots-101/4