Statics you can manipulate the volume like I said above.
Or you can change it up with doing higher volume 50% holds, and then lower volume 70% holds if that makes it easier for you to do.
To make it easy overall just do one workout heavy/hard with lower repetitions and harder activities (like I said if you are having trouble moving between progressions to make it harder you can add 5 lbs or something to give you some measurable progress) and alternate that with lighter days with more reps...
Just a simple heavy/light system at this point would work well for you.
3-5 reps vs 6-8 reps.