Co-op Discussion, Tips, and Questions.

I've been playing more and more Co-op lately as I've now black bordered several maps on single player. It provides a whole new set of challenges that has really refreshed the game for me. However, I have some questions about Co-op that I was hoping you all would be able to help with.

I have found the meta-standard Obyn, Ninja, Alchemist (ONA) to be quite powerful in Co-op. This seems to be able to carry me on everything except impoppable. On that, because the income is split 4 ways, I have difficulty getting the T5 upgrades that can carry the last 10 levels or so. I'm usually able to get the grandmaster ninja out, but permabrew is really hard to get out in time. Any advice for the last 10 levels of Impoppable? I usually go for Banks, especially because I have the MK for it, but I see most players going for other farms. Are banks still the most efficient on Co-op?

Which, if any, of Ben's abilities are shared to the other players in Co-op? The $/round? Skimming +$ per bloon spawned? Bank hack - all banks get extra income/round? The cash per drop of syphon funding? If any of these are shared, is it split among the players or does every player get the full effect? What if multiple players have Ben, does it stack? Other heroes abilities like Obyn's Nature's Wrath and Gwen's Heat it up seem to be shared in the full effect to other players, making them quite powerful.

In general, is 4-player coop considered the easiest? Even though the income is split more, having 4 heroes out is quite helpful in the early game and allows for more farming, which is not split.

Now that I'm playing Impoppable coop more frequently, I'm finding I'm getting disconnected in the 90s for no reason at all. I'll even host the game and it will be progressing with no lag or "syncing with other players" messages at all. Then, suddenly around round 90 or so, I'll be hit with a "You've been disconnected" message, with no way to restart the game or anything. I play exclusively on mobile and I'm connected through strong wifi and fast/reliable internet. Does it help to play via desktop?

Here are some tips I've found helpful for co-op:

• Most losses I've had are to the round 40 MOAB. I try and limit my farming before 40 and make sure the whole team is ready. If not, I'll sometimes rush a 3XX Ace which can be extremely helpful and upgrades well from there for late game. I also slow down the game on R40, not only because I think the server registers more hits on slow, but also so I can track progress and make changes mid-round if needed.
• Place heroes like Oby and Gwen and towers like alchemist and village as centrally as possible. Other players love to take advantage of this, and all 4 of these together can be quite powerful for pretty cheap.
• On alternate bloon rounds, pretty much everyone forgets the camo-lead. Get a 1-1-0 sniper set to strong, and this can deal with them permanently for the entire team.

Thanks for reading my ranting and answering my questions!