No problem. Just one thing to clarify:
A 7' hose is designed to allow airsharing during a restricted exit eg cave or wreck. Since you wouldn't be doing that on a single tank, it's common to use a 5' hose on singles, as I do. However some people like to use a 7' hose on singles as well for consistency, and if you're always diving with a can light, it works well since you can stow the excess hose under it
7' hose is ment for doubles, for singles I need a 5' one
A 7' hose is designed to allow airsharing during a restricted exit eg cave or wreck. Since you wouldn't be doing that on a single tank, it's common to use a 5' hose on singles, as I do. However some people like to use a 7' hose on singles as well for consistency, and if you're always diving with a can light, it works well since you can stow the excess hose under it