450: Boom height

[Fearnow]

Can anyone tell me the difference in the boom height, off the deck, between a 450F and a 450S?
Also, did Z-Spars lower the boom on later models?
Specifically, I am talking about 20011-2017

[Fearnow]

I am looking at two sets of drawings, one showing the boom aprox. 6' off the deck and the other, newer, showing approx. 5'.

[Tin Tin]

The difference in mast height is 28", as sail is supposedly same size boom difference should be the same.