So I have decided to go with a full topper, where I will cut partials from just to fill in my temple region.. Thanks to all the great info on this site, I have narrowed my questions down to 3. There is just a couple things that I need to know.

1) I know that some sites only single strand the knots in the front hairline and they multi strand the knots the rest of the unit.. So, could toplace single strand the whole unit? seeing as I will be making partials to use at the hairline, multi stranded units may be an unnatural look

2) The fact that I am only making small partials means that I will have the majority of the unit being unused until I break/ruin my partials. What is the best way to store my unused unit? is there something i should sprey it with or anything like that... Im assuming people that use backup units will have a good suggestion for this!

3) pretty basic question, but can I send my hair sample now? or do I need to wait until the order goes through, and what adress do i send it to?