I know there is a boost option for a 0 level armor spell that lets you cast it as an immediate action.
What I am curious about is that the word spells of summoning say that you can boost the targeting to get 1d4 + 1 creatures. Boosting the selected target word causes all the effect words to be 3 levels higher.
If that is true, then the first summon spell could summon 1 monster or summon 1d4 + 1 as a 4th level spell. That seems kind of terrible compared to using a 2nd lvl spell to get 1d3 lvl 1 summons.
Is that how it is intended to work?