1. Is it really needed to use an imbalance on you're magic projection ? and how do i know how mutch points i can place there ? and where does the point's come from ? my DP ? an exampel would be me having a character with MP 40 , and i want him to be offence , and i want to put 20 points in balance , so i should have: offence 60 , Defence 20 , and i cant have more than a 30 points differing?
2. what is "innate magic" really used for ? what does it mean ?
1) There is no need to imbalance your Magic Projection, but it can help. The points are from your MP, it does not cost anything to imbalance your Projection, the imbalance is a boon and a penalty. Lets take a more realistic level 1 spending 180pts in Projection, with 8 DEX for 90+10=100 Projection. They can have 100 Projection which works as both offence (shooting fireballs) and defence (magic shields). The imbalance is useful for the same reason an imbalance in a fighters Attack and Defence is useful, lets say you have an imbalance of -15 (Offensive -15, Defence +15) this gives you a 115 to defend, giving you a much better chance of not being hit, but only an 85 to attack, making your chance of hitting much worse (theoretically about 15% better and 15% worse).
2) Innate Magic is as said above, a pool of mana you can use every round to cast and maintain Innate Spells. However there are a few a disadvantages of using these (otherwise this would be all anyone uses);
1} You cannot accumulate it. If you have 60 Innate Zeon Points you can only cast a spell of up to 60Zeon cost, you can never use a stronger spell.
2} It is all the magic you can do that round. You cannot cast a normal spell in the same round as an Innate Spell, nor can you accumulate magic in the same round you cast an innate spell,
3} One spell at a time. While you can maintain an Innate Spell without using any Zeon, you cannot use another innate spell as long as you maintain your first one.
Innate magic can be extremely useful for keeping low cost spells with per-round maintenance up nearly forever (such as shields), and at high levels it works for many attacks. Also, you can accumulate and cast normal spells while maintaining an Innate Spell, just not in the round your casting it.
3) MA is how much you accumulate in a round, and the basis for your Zeon Recovery (which I call ZR), but MA does not always equal your ZR. You can buy ZR with DP (costing half of a MA) or you can get the magic Advantage, 'Superior Magic Recovery' which doubles, tripples, or quadruples your ZR (for 1,2 and 3CP respectively, making your ZR = MAx2, MAx3, or MAx4 respectively).