I hear you on the Sept resistance line. IMO, the weekly chart is showing something more significant. I think GFA will manage to push back above the Sept line soon.
Regarding GOL, you might want to confirm that the ADR is comprised on ordinary (ON) shares rather than preferred (P). In the case of a buyout, Preferred holders frequently get the shaft. Just speaking from personal experience there.
Sounds like your delta strategy is working well. GLTY.