One more approach: if you want to avoid getting "emacs pinky" simply do not use pinky to press control key.
If it is necessary remap keys on your keyboard to go in the following order:
[Ctrl][Alt][ Space ][Alt][Ctrl]
On any standard keyboard (which symmetrically positions modifier keys, e.g. any MS keyboard) now you can press Ctrl key with ring finger and Alt key with middle finger on both hands. These fingers are much stronger than pinky and can endure frequent use.
Great tool for easily remapping keyboard keys on windows is AutoHotKey
On Ubuntu I managed to do it using: Keyboard Preferences / Layouts/ Other options