Thank you so much for answering SO fast!

Just one final question about the fade-out of S4's nasty vision effects... you said that "they go away very quickly". Did you mean hours, days?... Due to my job, I am subject to medical checkups every year, and they include the (in)famous Ishihara color test (the yellow tint given by S-4 would be catastrophic there!) as well as reading letters and numbers in a semiobscured room... I guess you understand the reasons for my concern...