For Noah, a lot could change in a matter of days!
Like even at this instance, he was only wondering of the best possible paths forward as there were many.
On his side, he could make a crucial choice right now that he was still affirming with his understanding in Destiny among many others.
He had 30 Grotto Panaceas on hand as they were enough to have him complete his first Dimensional Layer...or grant him 6 more Ultima Strata Automatons!
For him, he only had the question of efficiency in his mind as when he pondered on what he could do, the factor to look at was whether he would attain Ultima Strata power after establishing his first Dimensional Layer.
And the answer was no, with the completion of the Dream Dimensional Reality putting him close to this stage, but not entirely there! It seemed that halfway up the second Dimensional Layer or its completion would be equivalent to the Ultima Strata Stage!