When we first played the game years ago, we didn't know you could choose lower success lines on the cards. So if you rolled at least 3 successes, you followed the the 3 success line (if it exists). For spellcasters, especially wizards, it made for some interesting moments if they rolled a LOT of successes while channeling...
But re-reading the system again as we get back into the game, I see that players can freely choose a lesser success line and thus easily manage the amount of power (or favor) that they channel. To me, this seems much less thematic and it takes away those tense moments while channeling.
Are we just missing something in the Magic rules this time or can people actually freely choose not to take 'full power' in RAW?\