I used this product to spool up a 2000 Shimano reel and it worked a treat, the line was at an acceptable strength after the spooling, and the line was firm and strong on the reel. However I also used this to spool my size 7000 Penn Reel and it was nowhere near as firm as it needs to be. My advice with this product would be to ensure that the line is going on tight and that you regularly check. This product is great in regard to it's price tag as well as the durability and reliability of this product, and it is a practical item that can be transported on the go. Very happy with my purchase, highly recommend for smaller reels perhaps under size 4000 Shimano and size 5000 Penn.