I can't believe I haven't already supported this thread, considering it has already existed for a year. Massive support! :)
I could also get behind Heemi's suggestion. Especially since, at the current exchange rate, 375k pebbles would still only be like 8 ms (and therefore about half the price of a single slot besprinkler at 15.) But if that is truly unfeasable, the original suggestion is still very much more desirable than the current situation.