The significant difference is in the said casting weight: 60 g at BVS-63L and 80 g at BVS-63ML. The first weighs 93 g, and the second 101 g. Don't just pick by the letters L and ML; Compare the value to the weight of the rig you actually use. A higher casting weight is only reasonable when your conditions and your lures require it.
The reel and line should complement the stick, not make it uncomfortable in hand. After fitting, check where the center of gravity remains, how the bait is led, and whether the grip is natural in successive movements. For fishing line, stick to the particular variant designations; do not automatically transfer a value from L to ML just because their length is the same.
Regular build is explicitly specified for BVS-63L and must participate in the judgment alongside the casting weight and weight. If you insist on the same behavior at BVS-63ML, check its separate specification instead of accepting it as default. In the fishery itself, make sure that the rig remains within the limits of the selected model and do not use the requested reserve as a reason for overloading.
After taking out in a salty environment, rinse the stick with clean water and let the two sections dry apart. Examine the guides for injuries that may damage the fishing line, and the assemblies clean of grit before picking up. The transport size of 99 cm is only convenient if the sections are secured so that the guides and the tip do not take hits on the road.
As you're looking at the spin options, Spinning Fishing gives a natural direction to the rest of the tackle. If your attention is on the stick, compare the general section Rods with the specifically targeted Spinning Rodsby being led by the lures, the places and the manner of leading that you plan.