The rounded shape allows it to spin slower giving the bass more opportunity to bite
You want to be close in diameter rather than strength for backing
The old TDX and TDR were mainstays on my rods, but when the 16 TDX was discontinued, I was left wondering what would replace it
Line PE Rating Diameter (mm) 6LB PE 0.6 0.06, 8LB PE 1 0.13, 10LB PE 1.5 0.15, 15LB PE 2 0.19, 20LB PE 2.5 0.23, 30LB PE 3 0.28, 40LB PE 4 0.32, 50LB PE 5 0.36, 65LB PE 6 0.41, 80LB PE 8 0.43, 100lb PE 10 0.50, 120lb PE 12 0.55 Daiwa J Braid Expedition New in 2023 ( released during AFTA ) is Daiwa J-Braid Expedition
I use this Sheffield Pocket Box for my hooks, split shots, float caps, and swivels