Zodiac's height by Fouke

So, in the police report, Fouke wrote that the man he saw was 5'10. But according to Tom Voigt, having spoken to Mel Nicolai, Fouke and Zelm got on the radio and gave the description of the man they saw seconds earlier as 6-6'2.

And if one looks at Waffledeal's post, we can see Fouke give the description of the man as 'over 6 feet.' And this was in 1991.

And if one looks at Harry Phillip's interview of Fouke relayed by Mike Rodelli, Fouke says of the mans height as 5'11. And this was in 2001.

What's up with this change? I don't know what to believe. The initial description of Fouke was 6-6'2, so i tend to take that view. Zodiac was probably 6 feet. But this is a soft probably.