SoP Personal, caster och feat talent stacking

Det här är en ganska ostliknande fråga om min-maxing.

Staber i SoP arbetar lite annorlunda än vanliga Pathfinder. Förbättringsbonusen gäller CL av sfärseffekten, och extra talanger kan inkluderas i stället för +1 bonus, ungefär som hur vapen och rustning och deras förtrollningar fungerar.

Större blast

The damage of your destructive blast increases by one die. You may take this talent an additional time at 5th caster level and every 5 caster levels thereafter; the effects stack.

Medarbetare

Any caster wielding the staff gains access to a magic talent contained within the staff. If this talent is a (form) Conjuration talent, it may be applied to any companion the caster summons, but no more than one creature at any given time. To contain an advanced talent, a staff needs a minimum caster level equal to that talent’s prerequisite caster level, and must contain all of that talent’s prerequisite talents. A staff may gain this special quality multiple times.

Circle Casting

You may aid another spellcaster who also possesses this feat, granting them a temporary +1 bonus to their caster level, as well as granting them access to your spell points and talents as if they possessed them. You must spend a standard action every round to maintain this ability, and you must be within 30 ft of the caster you are aiding in this manner.

A target may be aided by multiple casters at once in this manner, but all involved casters must remain within 30 ft of each other, and the effects are not strictly cumulative. It takes one aiding caster to add a +1 enhancement bonus, three to add a +2 bonus, six to add a +3 bonus, ten to add a +4 bonus, and fifteen to add a +5 bonus. No caster may receive more than a +5 bonus in this manner.

Så om du hade en +1-anställd med större sprängning (1) och en caster som hade tagit större sprängning en gång, borde de hantera skador vid 1d10 per dö som talangerna ska stapla. Två hjul med cirkelgjutning bör också stapla på grund av detta?