I know some people think these settings are gimmicky but I found them to be pretty useful in certain situations. Mainly when printing something that I realize needs to be slowed down midprint, or also sometimes when I’m printing something that is printing really easily at 100% and I bump it up to 124 or even 166 midprint.
In particular I would be interested in a 75% option. 50% is just slower than I need sometimes and I’m sure it would print fine a bit faster. I don’t think we need to fine grain control but one or two options between 50 and 100 would be nice and even a slower than 50 option.