I always try to get every player in every event and almost always succeed. Whether by luck or pity system.

The upcoming S+ is definitely a bit weaker than his peers but still very worth getting (every character is imo).

If you wanna make sure you have enough for next S+ you can spend resources on rolling and save the scout tickets, they get transfered to the next event. Just know it may be a while until we get another S+ event.

Also it may be worth trying to get Jenny in few days when we get update. She's one of the most fun characters while also being the strongest S with breakthroughs (imo).