Putting 10 hours a month on your report with a "balanced ministry" (a handlful of RV's and "placements") which if you have kids would include a "family study" helps enormously.
The above quote is the most important. Lots of emphasis on a "balanced ministry" I knew of one bro who regularly had 10-15 hrs plus in ministry but no RV's. CO shot appointment down. 6 mos and 3 rv's later and he was appointed. Stupidest thing I've ever seen. Based on that he is qualified now to rule the lives of the sheep? Because he visited 3 people at least once a month that likely were not even interested and probably used the WT mags to cover the bottom of their parakeet's cage.