If you can get to a 5X TC promotion during those dates mentioned in Vegas ( or on other dates elsewhere), you'd have to earn 3,000 TC ( x 5 = 15,000 total TC's earned via the promo to attain the base Diamond level) over the 72 hour multiplier promo period. That's $30,000 coin-in at most VP machines at CET properties( some machines excluded, of course) over a 72 hour promo period. Make sure you register for the promo officially ( a minor obvious detail, but important)..follow the TC tracker on machines as play progresses ( they'll gig ya if they can). You might need to pay attention to the starting times of the promos within prescribed promo dates ( depending on the properties, this 5X promo starts at midnight at some locales like Vegas and at 6AM at others). Just some options to consider.