I learned them when I averaged around 5 minutes with Old Pochmann edges and Orienting then permuting corners with J-perms. I suggest maybe 5-72. When would you suggest learning M2 edges? (See my signature for how many BLD solves I've done.)
What do you mean by visual? Do you mean remembering the order of the cycle with an imaginary arrow (like, first this goes here, then here, then here), or with colors White red edge = WR = war, or Orange Green = OG = Oger.3. I really enjoy visual memo but would you suggest that I work on labeling sticker locations? I'm curious about doing so but I'm not sure if it'd be worth it.
I defiantly recommend labeling sticker locations, or at least using the color one. M2 uses labeling sticker locations. I think the reason you BLD times are really slow are because you don't do that.