Provocation of pain when treating subscap, t-minor, infra spinatus, inf capsule

I wanted some feedback regarding the following situation: you are treating a structure (subscapularis, infraspinatus, lat, t-major, t-minor, inferior shoulder capsule) that requires the patient motion of shoulder flexion and abduction. And it causes significant pain to the patient as the arm progresses through the motion. Do you have them continue to take the motion to their present end range even though it is hurting them or do you have them stop the motion short of too much discomfort?

If they can go to end range obviously it is better for the practitioner in terms of generating treatment tension. However I have some concern that perhaps I might be causing more harm by having the patient move their arm into a very painful range. Appreciate any experiences you can share.