Tightly wind on spectra is very important especially fighting a big fish like tuna. I learned the valuable lesson after I lost big tuna becuase the fighing line dig into the lines on the reel. If you let the tackle shop wind the spectra line, you have to ask them to wind tightly. I usually use extra reel to wind the line on it first, then with a click on, or slight drag I rewind on the original reel. Also I read that to wind tightly, you release all the line while the boat runs at 6 - 8 knot and wind back the line on a reel.