904 dragging in reverse

I have heard many 904s do not go into reverse rapidly after sitting for a few days maybe even over night. (My 67 does this)

I can either give it more gas to back out of the garage or put it into neutral for 10 to 30 seconds and then into reverse.

I would expect it to do that on first start but not for subsiquant restarts.

Now if you were low on fluid and parked on a slight slope you might be sucking some air on restart