File:Hanster-21 Keyboard Layout.png

English: This is my Hanster-21 keyboard layout. This compromises between Hanster-19 and 20 and builds on these strengths. I kept the left hand, right hand index, and right hand middle fingers intact from Hanster-20 but rearranged the right hand pinky & ring to reduce awkward pinky ring combos.

• Swapped S and C. While this increases ring-pinky outward rolls, I didn't like how S on pinky made a bit of awkward combos (SW/WS and SM/MS), so I just swapped it.
• M is now an SFB on ring rather than a pinky ring gymnastic, which is slightly more optimal.
• F was moved to top row at the expense of FL, but I didn't want it to be on pinky and I was really able to take advantage of the extremely rare FS sfb since FT does too much SFBs. NF is also almost as common as FL+LF combined.
• W takes the place of F on Hanster-20 and B on Hanster-19 and only SW/WS is the significant pinky ring gymnastic. It remains on top row to avoid the WN row jump and to take advantage of the fact that WR is less common than RV (pinky above home row ring and below home row ring are just as bad)

Now, the only issues are AU/UA SFB (but I didn't want to destroy the comfortable inward roll), SW+WS, and FL scissor. Other than that, this has to be one of the best performing layouts to date.