Your choices of pellets will work well.
Both go just fine through my B26 but you may have to decide which one you prefer & stick with it.
Superdomes are about 14.5 grains & most of the JSB clones (inc Daystate, FX, Air Arms, RWS Superfield etc) are about 15.9 grains in weight.
At 35 yds you're gonna get a shift in vertical point of impact due to the Daystate's being about 10% heavier.
I use both, but in different guns.