The problem with hybrids is there is a set limit on the number of stats you can put in your gear. Assuming you decided to stat 50% physical/ 50% magical means you only have half the stats that someone who does 100% would have.
Example... let's say your stat your gear with 20k physical attack and 20k magical attack. Another war decides to go purely physical and, instead of using magical stats, uses those spots for another 20k physical attack. That 40k attack will help him do much more damage than your 20k/20k attacks.
Let's say a mob has 30k physical defense and 30k magical defense. Using the above example, the purely physical war is 10k physical attack ahead... while the hybrid is 10k attack below on both physical and magical.
Well then wouldn't it be effective to some degree to focus on hitting the mATK cap alone and then pouring the remining points into pATK.
I suppose it depends on how different those stats can become, I mean W/M has an attack that amplifies mATK as long as you keep the stats up right? If an increase in an ATK stat ends up with only marginal returns after you hit the softcap (I assume that's the 30k in your example), then you could focus on just hitting say... the pATK stat, and then spamming mATK to help "ramp up" with youe mATK steroid to hit (or nearly hit)both caps. Unless the formulas are VERY unforgiving that strategy should result in a combined DPS that is higher than trying to stack just one or the other.
But I keep getting distracted from RoM by LoL and forgetting to try leveling up to test this stuff.
Edit: Awwww it's damage not atk... Sad. How exactky do the weapon enhancements work. the wiki does not give enough of that kind of information /sigh. Obv dependent on phgysical attacks hitting, but what do they scale with?