Your Tets are at 4.3, but you didn't say anything about the Hallertau's.
Are these pellets or whole flowers?
And, how much water will you be boiling? I'm assuming 2 since you're steeping.
Answer these and I'll get back to you..., but in case I don't/can't, if your HTs are under 4% then I would add all the hops at the boil.