Unduped Sentinel to 4/55 - worthy investment for V3 and late-game content?
So far I've only done one initial clear of v3 chapter 1, and that was with a 5/50 Ghost. If I was to go for chapters 2/3 completion, my team would be - Ghost (w/ Wasp, Antman, Hood) + Sentinel
I'm looking to use minimal revives and little to no units (I've got a stash of pots to heal between fights), and I'm tempted to take my Sentinel to 4/55 to make my life a bit easier (especially when it comes to dealing with specific problem fights like Colossus/Rogue/Kang).
I'm hesitant to pull the trigger though, especially since he's unduped. I know this doesn't matter too much in v3 as he gains analysis charges twice as fast, but if I'm taking a champ to 4/55 I want to be able to use him effectively and efficiently in other content too.
I guess the main questions I'd love to get some insight on would be:
1. How useful is Sentinel in Act 6 and Variant 2/3?
2. How's his fight-to-fight sustainability as a 4/55?
3. Is the increase in damage output between 3/45 and 4/55 significant enough to justify taking him up to r4 even when he's unduped?
I've done a lot of research on auntm.ai and YouTube, but would greatly appreciate any further insight into people's past experiences with a r3/r4/r5 Sentinel, especially in content such as Act 6, v2, and v3. Thanks in advance!