Was the pen still more convenient。. I too would like to improve my modeling with a pen tablet! Did you use a pen-tab instead of a mouse from the beginning?
those are nicer to use with the pen than the mouse imo. honestly though - your shortcut selection should be based on the work you do. eg. if you connect vertices a lot, learn where the default shortcut is and if you don't like it, change it.
i'm not using a pen for modeling but i'll just mention in case its helpful that you should also look into custom shelves. I have it on a floating menu that way all the common tools can easily be reached from center of screen. it is similar principle as a marking menu, just that it stays in fixed position so I find it a…