It should be possible to get a second CDP on one hour's boost because it provides the factor for every game started in that hour, AFAIK.
Edit: Ouch, it's only worth 40%. Numbers corrected.
Thus, start a game in minute 59, save it in between, wait 23 hours and finish it then. Final count is 1.4x2x880 + 1.4x2x400 plus any games you can safely play in between, maybe 3,600 XPs.
I'm not sure if it's worth the hussle though. You have to time it right, you block yourself from playing for a whole day and you pay for it. Doin' it conservatively brings 1280 XPs for playing the first game of the day, 3,800 hussle-free XPs in three days, plus XPs & fun in between.
100.000 XPs are a lot, so it's basically a trade of (max) 28 boosts for 23 days. Is this worthwhile? You decide...