To those who really want MANIAC PRAYERS or making waves; I'm fairly sure it's better to get tales of terror and upconvert and buy maniac prayers at rat market at cost

Let's say someone is gettin 25 maniac prayers per actions = 80 actions to reach 2000. VS you'd get 5 tales of terror per action; 50 actions to reach 250 tales of terror, 5 actions to upconvert to 50 extraordinary implications (+2 actions of getting back the uni reputation); then 2 actions to upconvert to 10 uncannies (and an action to get uni reputation) then 10 actions to convert to 2000 rat shillings = 2000 maniac prayers; so same prayers but tales of terror is 70 actions instead of 80; PLUS you get 5 strangling absinthes, 54-114 making waves and other minor bonuses of nevercold brass, rare successes, and I overbudgeted uni reputation so it's probably an action less. There are Flask of Abominable Salts costs of uni reputation; but I think at least for the stats here, it's not going to change the story.

The higher level your base stats are; the closer the two alternatives become until I think if you get 40 maniac prayers per action vs 8 tales of terror; then the two alternatives are approximately action equivalent (I think tales use 1% more actions??) but tales of terror still have bonuses of brass and tons of making waves but the downside of abominable salt costs; so perhaps depends if you care about MW....although now that I think about it; if you sell 5 uncannies for 850 I think tales of terror are marginally more action efficient still; butyeah, not sure how echo equivalent they are; but if you're max stats you probably care more about action efficiency(?)

There are also rounding considerations from when you supplicate, so your mileage may vary, but I think worth a quick calc!