(emphasis in quotation by me)
I definitely support this now, in the situation when clear yusho candidates are not very expensive. Back in Hakuho domination days, picking him meant half of budget out. It was actually possible to gamble on set of surprise winners (and I had some good basho long time ago with this approach too, if I remember correctly).
But now, when single competing yokozuna cost less than 100 and even previous yusho winner as well as competitive Oe both less than 300, it was enough to use 550 for trio Kakuryu, Takayasu, Tochinoshin. Obviously, I have put Kakuryu on 8 as both Takayasu and Tochinoshin looked more solid, but this did not do so much damage.
Otherwise, I had an incredible amount of luck. I am basing my Salarycap sumo predictions on relationship between my Oracle predictions and Salarycap costs. As you can find, my Oracle result is very bad, as usual. Yet this time, most of my other choices outperformed my (mostly wrong) expectations: Kaisei 12 - 9 (at 6), Abi 10 - 8 (at 5), Tochiozan 5 - 10, (at 7), Yutakayama 10 - 7 (at 4).
All in all, to win you need either deep understanding of what is going on or large amount of good luck. I had a bit of former and a lot of latter. Not expected next time, but let's celebrate now.