To late, once shimanos are on might as well just get a new bike.
I know some people confuse stopping power with lack of modulation. Are you just looking for that super quick grabby, stop you on a dime, kind of stopping? If you had mechanicals on before that where set up to go into full lock within the first micro movement of the lever , you might just have to get use to the world of mmooodddduuullaaattiiooonnn.
(Joking on the shimano and the new bike thing, they are great brakes. I run them guides though
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