I've got some 6lb Yo Zuri Hybrid Ultra Soft left that I bought back in July probably.  I dont know whether I should use it to respool my spinning reel and use for a few months or if I should just buy new stuff outright.  Its been down in my basement so not exposed to the elements.  You think it'd still be good?

as long as its not exposed to the elements its fine. Just look at it this way you never know how long fishing line has sat on the shelf at the store either but you still buy it !

Haha very true, hadn't really thought of that  ;D

Use it. But I would spray it w/ real magic or KVD line conditioner first. I do this to every spool I buy asap.

Tie it around something and give it a couple good pulls to stretch it out and get the kinks out of the line.

                                        -searoach

I haven't used that brand, but if it's like numerous other brands I've used, it will be fine, and it will continue to be fine if you don't use it now.