I have seen Temporary Spell Points from Just Reward stack pretty high in the past, at least 50 or more temp SP. HOWEVER, whenever I immediately cast a heavily meta'd nuke after it is stacked I get the message "not enough SP" even if the temp SP are stacked with enough to actually cast the spell. This happens when I am exceptionally low on SP (in the Echoes range). The temp SP stack up giving enough SP to cast a high cost spell BUT it fails due to not enough SP.
Has anyone else seen this behavior?
Do the Soul Eater temp SP from Feed on Magic last long enough to cast a full meta'd Ruin/GRuin when stack high enough?
Thanks