Introducing Canaria (spanish for "canary"). This version moves the J to make it faster to type in Spanish, without sacrificing English speed or ergonomics.
It's rare for an ergo key layout to be good in two languages. This one is.
But look how often P shows up as a double letter, which stops you from rolling the keys because of the double-strike: opposition oppression stopping appendage application applying appreciate --- there's a lot.
So in Workman the word PEOPLE is a painful SFB-fiesta, and that is a Top 200 word in English, and it does not feel good at all! That's because P needs to be opposite of the vowel cluster, not just because of PEOPLE, but because you need to use one hand to take care of the double-letter strike while the other hand is setting up the vowel cluster roll that is coming.
Why isn't the location of a letter commonly struck twice only a problem when the finger used to strike the letter is also used for preceding and following letters? E.g. 'stopping' in Workman has right ring finger hit all of 'opp' which, yes, isn't great, but that's the only example I can think of - *opp* words.
double letters stop the rolling action, and P is one of the biggest offenders. Putting P next to a vowel cluster does nothing for rolls. It makes more sense to swap to the other side of the board so while you are dealing with whatever P is doing, your other hand is teeing up the rolling keys that will start after P.
For instance: application. In Canaria your roll would look like this, with the keys being rolled in [brackets]
opp[ortun][ity]
Or, if you're slower:
opp[or][tuni][ty]
The letter P in Workman is on the wrong side of the board. If you are making a vowel cluster (or close to one if you leave out A), then P goes opposite of where O and U go.
Interestingly, Spanish might be easier to optimize as a solitary language if the punctuation keys are moved away from the vowel cluster. You can get insanely-low SFB scores. Spanish is a higher-syllable density language with better spelling conventions than English.
What some of the alt-Spanish layouts have done is just take an EN-optimized layout and add diacritics (and Canaria is not an exception here either, it just restored some ergo sanity to Spanish vs. pushing Q and J to bad spots like most EN ergo layouts do). For those who work entirely in Spanish most of the time, EN-ergo layouts are not ideal.