Degreeing a Cam, or not.....

I will redo all the numbers again tomorrow or Tuesday. Another thought or question. I have both rockers on. Turning the motor over is a big pain and I feel that there may be some spring tension or compression. It is about time for adjusting the valves. Would it be wiser to remove the rockers so that I could rotate the engine more easily? I would not want to remove the heads. I
Can then measure lift directly off the solid lifters. I have an adjustable rod that I can use if needed.
Thank you everyone for all the advice, help and encouragement.