This weekend I'm to be in 1560 0r so, the rest of the summer weekends I'll be spending in 1585.

So tell us, Leo, what's so different about 1560 and 1585 that bouncing back and forth while in character would be so traumatic? 1960 to 1985 I could understand. But was the rate of social/technological change in the 16th century so rapid that 25 years would make a big difference?