Puffin Private is not a sufficient substitute for the removed Puffin pro private mode, even though the desire to keep the two seperate makes some sense. The workflows are different, the features from pro (from what I understand) don't carry over. Chrome's UI and backend aren't as good as Puffin, but that's besides the point. The private app could very easily be made to detect a pro purchase and restore the pro looks/functionality- see your drm practices (not that bad, tbh). Why not?