The only bad thing is the "3" in the "b23" can still be ducked even though it says it's a mid, it isn't really.
B2 is really the only true mid in that string.
Your combo Chef is 49+52=101%
There is actually a 100% combo that leaves that magic pixel of life left. It starts with all true mids. (the 22 MB OR)
Although not that the combo above matters if you can truly hit confirm off the jump in 2.
Let's say that our eyes and reaction speed is fast enough; making that the case, you can actually do a 49+54=103%
I would also like to share my 57% Midscreen 1 bar combo that I forgot to upload a long time ago. It still does 57% here in 1.05