LG is the best SA for a C in my opinion. It gives a boost to stamina and confidence to everyone on the line, when that player is playing C. Run block, Pass block, Shock Block, Pancake are important as well. Well, pancake is not important, but with 100 STR you'll be knocking everyone on there rear if you get the pancake up. I think the 1,1,1,2,4 on both trees works pretty good. That's long term speaking. Then maybe boost the run block and pass block and shock block. Honestly I would continue to build AGL/VIS and train SPD/CON for a few more lvls first though. Build whatever tree you like, because in the end you'll want something in both trees anyway.
My GM really thinks the LG is useful. I put points in SAs too early and he said no more. But then he had me boost the LG from 3 to 4 to take advantage of what I had spent. He swears it has positive effects. But you've done a almost perfect jobe building your player. So it's all arbitrary what you do from here. Everyone has opinions about SAs, but there is no way to know for sure.
My GM really thinks the LG is useful. I put points in SAs too early and he said no more. But then he had me boost the LG from 3 to 4 to take advantage of what I had spent. He swears it has positive effects. But you've done a almost perfect jobe building your player. So it's all arbitrary what you do from here. Everyone has opinions about SAs, but there is no way to know for sure.