On this we agree. I do believe that Oswald was wearing CE 151 on Friday morning and later changed that shirt for CE 150 at the rooming house.
In addition, it is also my opinion that the FBI dropped the ball on the shirt issue, by not testing the shirt CE 150 for gunpowder residue.
I know it is only conjecture, but the rather large tear in the back side left sleeve of CE 151 that can be seen in the WC photo suggests to me a couple of things.
1. Most of us would not want to wear a shirt with that size tear in it. Even if it was only to work in a warehouse. It would bother me, not only the appearance, but I would be aware of it from the feeling of a partially exposed arm, I am reasonably sure.
2. LHO told Fritz that he changed shirts when he went to the rooming house the afternoon of 11/22/63. This, to me, is evidence that the tear did bother LHO, along with it being dirty (as he told Fritz).
3. Due to #1 & #2 above, it seems reasonable to me that LHO most likely ripped the sleeve while wearing it on 11/22/63. Otherwise, I don’t believe that he would have donned it to wear to work knowing it had such a large tear in the sleeve.
Also, I believe that I read (probably on Pat Speers’ webpage) that someone described the pants (that they believed LHO was wearing and changed out of at the rooming house) as dirty and looking like they had been slept in. Just another reason to believe that he wore the same pants and shirt on Friday, 11/22/63, as he did the previous day, Thursday. I wonder if the evidence that belonged to LHO that was collected at the Paine’s residence included any clothes suitable for LHO to wear to work at the warehouse. If it didn’t, that would be a good reason for him to wear the same clothes both days.