We have a wiki page dedicated to experimental evidence, which you've been linked to before.
The sinking ship effect does not explain objects being obscured by the horizon;
the Bedford Level experiments conducted by Rowbotham, Blount, and Shenton were flawed in that they did not account for surface refraction;
Kansas flatter than a pancake took
elevation references, which are from sea level, which is not a straight line on globe;
I haven't read Zetetic Cosmogony, but if you can link me to a free e-book, I'll have a look;
A hundred proofs does not contain any actual proofs, just a collection of anecdotes and misconceptions;
I have not read Terra Firma either, but I'll have a look if I get bored.
All in all, not a lot of useful info on that page.
EDIT: I have created a thread
here for further discussion of "A Hundred Proofs..."