Now only running twice a week still. Doing more cross training (swim, indoor cycle) to maintain cardio fitness while doing more strength workouts for the calf
Can try doing single leg pogo jumps, can do left right front back and diagonally as well.
Can do unbended knees and also focus slightly more on slightly bended version if you want, bended hit Soleus a bit more, which is more impt and used for running.
Do in office, saves time. I Do in server room one so no sweat (just finished my decline push ups and mini bands 5 mins ago actually)
Not a pro / expert here, but if you are really speed performance oriented for "shorter distances", really need this last bit (strength train) to help.....as in every bit helps.
I just know that for cycling and more specifically my riding style (shorter surges etc), it really really helps.
In fact upper body and core too, really helps.