How can I maximize distribution for my casts?

TL;DR — don't overthink it, just cast and if you feel inspired to add a channel, do so.

1. Cast in your timeline it goes to your followers

2. Cast in a channel, it goes to your followers *and* will appear on the channel page (but few people click through to them). No algo boost.

So a marginal benefit, but the Warpcast algo DOES NOT treat channel casts differently

If we cast in a channel, will it show up in the feeds of channel followers who don't follow our profile?

Devotional polytheist living a monastic lifestyle centered on curiosity, simplicity, and joy.  Exploring the intersection of technology and spirituality.

It will show up in your followers feeds.

Not the people who follow the channel but don't follow you.

in my main feed, i'd personally like to see good posts in channels i follow from people i don't follow some fraction of the time

How are profiles mostly discovered? You say that checking out a specific channel is rare.

If one of my followers who also follows my channel recasts my cast? Would that also mean their followers now see my content even if they don't followe the channel?