A few questions about build grids:
1) Should I only be focusing on one element at a time?
2) Are M2 grids generally better than M1? If so, how much should I really be investing into skilling up/uncapping Colossus canes over just waiting till I can get AES for example?
3) What's the best way to get skill fodder?
1. Somewhat? The fact is, that as you develop your "best" grid, you are going to want to use it... to farm another grid. Lets say you are focusing on water, which means you are mostly using Dirt teams to fight Water. That Water team you are developing now goes to fire, etc.
2. Earth and Water M2 basically replace their M1 grids. Fire doesn't have an M2 grid, if you want to stay Magna, you go from Canes to Ancient Eche Sachs. Wind replaces 3 of the Tiamat Guns with Grimnir Harps for 100% Critical, but still keeps some guns. Light is debateable if the M2 plan is better than the Chev Sword grid, and Dark supplaments it's claws with Avatar items. Basically, you will still use some of your M1 items in elements outside of Water and Dirt even when you are well established with M2
3. Doing your daily magnas! You will end up with 25-30 SR weapons if you do all 12 of your Magna fights dialy