Same thing on my machine. It started midway between the two marks, dropped down after the first few hrs and it has stayed at the low mark since after my first ride. I haven't added any because I wanted to see if it dropped more, but it hasn't. So I will add more before I go out again.
its normal.. mine was down,then back up.. u know if u had a leak..sweet smell.. i found my grizzly the same way.. for some strange reason it used more coolant in the winter months..figured it be the other way round