I love my smoke 15, but dislike my smoke 25. The reels are great, but for a size 25 reel, the spool diameter is to small. Like randy said, the 15 is great for pitching and vertical, or using on a shorter ML Rod, but with the Rod you have, I highly recommend the 30 size. It’s the same reel size as the 25 with a larger spool size. It weighs almost the same as the 25. This is the reel I am getting to replace my 25. I will be running 15’s on my shorter lighter rods, and the 30’s on my longer heavier rods.
FYI, you want the largest spool diameter you can get within the weight of reel you desire. KVD had a great article detailing this, and he only uses the 40 size for the larger spool diameter, even though it weighs a lot.
Hope this helps