Question about a Mythic Master Summoner and Eldritch Heritage

[the_move]

Hi!

I soon start in a mythic campaign and I wanted to know if this might work out.

Master Summoner (archetype)

- half-elf (gaining Skill Focus of Knowledge Planes)

- Superior Summoning (gaining an additional creature, if more than one is conjured)

- Eldritch Heritage (Abyssal Bloodline), including Improved and Greater (gaining Added Summonings at 17th lvl)

- Mythic Hierophant Mighty Summons feat (hopefully conjuring another additional creature along with DRs)

- Mythic Archmage (Dual Path) Speedy Summons

Since according to the description you are "casting" "Summon Monster" as a spell-like ability (as a summoner) which of these feats would not work with it? Would the Added Summonings bloodline power trigger both Mighty Summonings and Superior Summonings?

[ShadowcatX]

I don't see any reason why it wouldn't work.

[the_move]

To be more specific my question is, if due to Added Summonings working on a Summon Monster IX Spell(-like ability) to summon two Glabrezus (demon) instead of one, will Superior Summoning and Mighty Summons also work in connection to Added Summoning, since more than one creature is being conjured, thus resulting in conjuring four Glabrezus with just one Summon Monster IX?

Summon Monster IX (one creature of the 9th-level list)
Added Summoning (an additional demon/fiend) makes 2
Superior Summoning (an additional creature if more than one is conjured) makes 3
Mighty Summons (an additionanal creature...) makes 4
???

Summoning 1d3+3 Hezrous also might provide some fun, though.