I'm going to give you my thoughts on this, with the caveat that I have a little but not a lot of experience with this bullet. I hope to have more in the next few years, as it will be my hunting solution going forward in most cases.
Like all situations, you need to think about how shots typically happen for you. Are most of them at moderate ranges, or do you find yourself taking longer range shots at game frequently? I've killed a couple deer at 2800ish impact velocity, and if you hit bone it gets pretty messy.
If you are keeping shots inside of 400 yds or so, it might be hard to justify shooting them faster than Creedmoor velocities. Outside of that, maybe more velocity makes sense, just know that if you hit a shoulder at 3000fps, it's going to look a little catastrophic. It's worth noting though that I haven't seen that done, just extrapolating from what I've seen 200 fps slower.
I've shot the 156 Berger out of my Creedmoor some, and if I was dealing with more than Creedmoor velocities, that or the 147 ELD-M would be my choice. The BC of the 156s is really high, I just feel like it's a little more bullet than optimal for a Creedmoor. I've come to think that the sweet spot for them is the 130-140gr softer bullets. I was told this, but had to try it for myself.
Just one forum idiots opinion!