Roller Furling Question..

[Mark1977]

My new to me boat has a roller furler, harken. I have not had the luxury of having one before.
I find it a bit slack and have adjusted it all the way, my back stay seem tight as well. I went to another boat and seems about the same, Is this normal to have it a bit loose? Is it just the weight of the sail and foil maybe on the stay that makes it that way?

Second question....do I just roll the release cord back on the drum?
Sorry for the noob questions, just first time useing one.