eagletree

I'm new to the hobby and i am interested in buying an osd, so far i'm between the eagletree osd pro and the 3DR APM MinimOSD Rev1.1 Thankyou guys you youtube channel has inspired me!

for over 3 years i have a eagle tree osd pro setup but never got it to work right. It is used in a twinstar complete with gps and gardian expander. The odd video link part is working ;its the return to home and stabilisation part that is not ; each time i try the rth test feature it tries to...