This is a 17 Theory 2506H. I purchased it new and used it for bass fishing for about 5 years. It has been a sub-reel for the last 3 years and hasn't been used. I haven't used it for a while, so there's a possibility I haven't noticed any issues, but there's no gritty feeling when reeling, and there are no noticeable scratches on the spool edge. The handle knob feels a bit sticky due to deterioration. It has never been used in the ocean. When I was using it, I regularly performed simple maintenance with oil and grease. Daiwa Shimano Bass Fishing Nories EverGreen RAID DSTYLE Imakatsu Deps OSP Issei Gary YAMAMOTO Jackall Bottomup