Hang out during one of the two peak time periods during the day. (NA daytime and AS daytime). Start a joint request, then instead of playing your game, minimize it and do something brief. I tend to take my animals out or something to kill a bit of time. By the time you return someone out there will likely have aided you and you get to, if you're like me, enthusiastically thank them out loud before repeating. Joint development is still active, and I seem to get all three upgrades in a day.

The issue is that so many features are disabled while joint development is running. If they let you queue it the entire time you were connected to the online features it'd be a lot more viable. I imagine most people prefer to actually play their game than idle though.

i wish someone would help me with my equips too