No problem...actually, happens all the time. Why PM doesn't auto populate the title with the question is unknown.
Who knows? I guess that's another discussion for another day ;-)
Generally, gimmicks, techniques and such aren't discussed in any detail in this public forum for obvious reasons.
This is a neat variation of an existing concept.
The deck isn't really examinable.
Reasonably, you can do as many predictions 'in a row' as you wish.
Normally, I would never recommend 'pre-ordering' anything, but with this one, you should be good to go.
Plus, Greg Wilson in involved...you can never go wrong with Greg.
Happy holidays.