Should I head straight into sunbreak after getting hr7

I've been playing this game since it came on ps+ a few months ago and now I'm nearing hr7. my question is should I keep grinding hr or move onto sunbreak. My main problem is that getting up in the hub ranks is tedious because you have to complete a certain number of key quests but I know getting past hr7 solves that and makes it less of a grind replacing it with xp instead. I've heard people say it's better to get too hr 50 and others say go all the way to 100. What do you guys think