Well having played through most of the game with your hack (v1.1/1.2) it definitely improved things in most cases. Here is what I noticed.
1. The first boss was nearly impossible and pretty much a pure luck based mission even with both characters knowing sacri, mostly because of extremely limited restoration items and no way to rest and heal up, thus you need to only fight a bare minimum of battles (just barely enough to learn the sacri spell) if you want to have enough resources left over to even a chance of beating the boss. Fortunately that is the only super hard point.
2. Although the first boss fight is extremely hard, some of the other early game bosses are actually easier in some ways. Especially the
, given how easy it is to get the sacrum spell early on.
3. Due to increased cost of justice/delta shield, getting 4x silvite rings ASAP is a must, definitely before fighting