I may have been under the wrong impression but I always thought backlash at the beginning of the cast is controlled by the spool tension or cast control and backlash at the end is controlled by brake settings. The SLX MGL 70 instructions say just the opposite.
“if backlash occurs at the beginning adjust with Shimano Variable Brake System. If backlash occurs at the end, adjust friction cast control.”
It’s my first Shimano. Is there something different with this brand?