I get it. Personally, I can't do ISO-style left-shift where it's smaller and has another key between it and the nearest letter. I don't use Right shift much, and when I do I land on it's left side, so that wasn't an issue, and it didn't take me long to get used to curling my thumb a bit more on the numpad. Layouts that compress things a bit but retain a numpad are my sweet spot.