I believe that's correct. Sentinel and Medic also give HP bonuses.

Essentially, I TRY to do commando for all of Noel's big nodes. And then I TRY to do ravager for Serah. Though for Serah I can now do some Saboteur nodes as well. I feel that I will keep doing Commando for Noel, until I get his Saboteur node and can get those strength bonuses as well. There's some like 198 big nodes, so the stat bonus is pretty substantial.

THE JACKEL