Hello Mate,
The White Paper was ready since a day prior to it's released was clarifying some of it's processes , the idea was thought through much before mate so nope it's not on the fly.

I hope I'll be able to please you.

PS: For everyone standing strong with SUM2 and fighting against baseless FUD my salute to you.
~SoopY~
I have nothing more to say on this until the whitepaper is released except that I look forward to an on-schedule release of a whitepaper that proves me and a lot of other skeptics wrong -- something that provides a serious, credible and original anonymous-transfer concept that adds value.