Just curious how others use the SM and SNA spells as they near the high end of the game. Say levels 15+, in particular how you see them used against CR16 - CR21+ creatures, and the SM VI-IX and SNA VI-IX range.
Do you use them at those levels? How so?
Often/How do you think the compare to other spell choices at those levels? Do you have a favorite summon/multiple summons from a higher level spell?
How do they perform IYO?
Do you find them effective/How do you keep them effective? (Do you think they can be effective "stock"/"out of the box"? Do you feat into Aug Summoning, and/or feel you need to? Depend on buffs? etc)
If it matters, what are you often facing at those levels, what's your group make up? (If those have a bearing on your answer)
Really kind of an open ended topic, looking for feedback from players with experience to share.
Edit: Also if anyone's had any really creative/unconventional uses of them at those levels, share away. Not every problem a SM/SNA helps solve has a CR attached to it after all.