if you’re intending to seed with a decent upload bandwidth, you’ll likely need a vpn with port-forwarding capability. there are fewer and fewer providers these days with that offered as a service, so make sure before you sign up.

could be poor channel balance, or your flats weren’t properly calibrated. if you use something like background exterminator, proper sampling points are important as well, otherwise you can see kinda “rainbow” looking things like this.