It depends on how many betting streets are left to play and what is the effective SPR in play: protection is less important with big SPRs, as your range is going to be protected on most runouts.

When we play with big SPR we want to raise very strong hands that can continue to valuebet on most runouts (or can comfortably bluffcatch): having a club blocks the opponent FDs (making it a bit more likely that the opponent has a strong hand), reduces the outs for the FDs in their range and increases the EV of our range on club turns/rivers. Not having a club gives us more complex decisions when the flush comes.

If the SPR is low and you can close the action with a single raise (f. ex 3bet pot you can shove all in on a turn bet), then we prefer to shove combinations without the club, as our opponent will have to bet call some flushdraws.

It's tough in the beginning, as if you're used to study on your own and have developed a strong method it might feel like a "waste of time" (I was guilty of this thought in the beginning). However in the long run you can feel improvements not only in the way you think about the game (different perspective are helpful, even if sometimes you don't get along too well), but also in being able to listen to other people's ideas and to express your own in a clear fashion - which I think are two essential skills in life.

Thanks for the feedback, I'll consider making other videos on this topic in the future

When studying with a partner, I would focus on studying in a way that I can't do by my own: I think trying to generate context, to create common scenarios, or to create drills is going to be way more beneficial than just running through sims together and trying to understand patterns - for that it's probably best to ask a coach.

The best way to improve your understanding of the game by working with players of similar skill level is to "share your horizon", sometimes it will match, sometimes one's will fill the gaps of the other's and vice-versa.

So maybe, when you discuss a hand, instead of saying oh the solver here is betting 80%, checking 20% with this specific holding, try to ask your friend: "how would you punish me if I'd bet 100% here? Do you think the people that we play against will be able to find this counterexploit?". This will improve your strategical understanding of the game even further and will even help you "slow down" in game before making critical decisions instead of autopiloting them.

Wonderful insights here. Very much appreciate it. Thank you so much!