I have been on push ups for almost a year now and slowly progressed over time in quality and quantity to about 4x9. I have been in this step for almost 6 months now and the last set is still a struggle to complete in good form. 3x9 plus 1x6 is guaranteed with the form as in the video but 4x9 is still a stretch. My left arm looses the strength first in the last set but in first three I can feel that that left is weaker of the two when trying to hold depression. In other part of the course work I am in the following: RC B5 5x5, in planks C3 4x36, For core FL A2 4x36, SL B2 4x12, Manna C1 4x12. I have considerable amount of time on the forums going through form checks and I think it is time to seek help
. This forum has been a great resource. Please let me your valuable feedback. Here is the link to the video: