1) How long did it take to break 70? If it took you 2 years, was that 2 years from the first time you picked up a golf club, or did you just play around for the first year and then take the second year seriously?
I started playing at 12 years old at a public nine hole executive course. I played mostly with a friend whose father was a scratch golfer when he was in his 20s. I played a single year of JV golf when I was 17, when I was coming off knee surgery and couldn't quite yet make it back to playing varsity tennis. At that time, during my matches (we only played nine holes), I was shooting 43-49, playing by every rule. Over the next year or two, my handicap dropped to around a 14, where it stayed for all of college and seven years of graduate school, due to playing enough to maintain but not improve. I had shot in the low 80sa number of times during those years, even getting a few scores of 80, but didn't have the length to really get enough greens in regulation to break 80. It was after graduate school, when I got a job (30 years old) and was settled in a particular location that I knew i needed to totally change my swing to get more distance (as my average drives were consistently dead straight, but maxed out not much more than 200 yards). I realized that I had a reverse pivot and I took a few lessons a year over the next few years to get rid of that reverse pivot. That first season when taking lessons to totally redo my swing, at 30-31 years old, I was shooting in the 90s. The next year, age 31-32, I was in the high 80s. Finally, by the third year after deciding to fill rework my swing (age 32-33), I finally got back to the scores I was shooting before I made the swing change, low to mid 80s. Then, the next year, it happened (age 33-34), those years paid off and that's was the summer I started to regularly break 80, in the high 70s. So it took about 22 years. I am now (at age 39) about a 6 handicap and heading, it seems, to scratch (lowest around ever was a +1, 73).
I am still not a long hitter (230-250 yard drives), but the REAL key to breaking 80 is a great short game. Unless you're hitting 15/18 greens in regulation, which is an insanely high percentage, as 12/18 greens on regulation is a pretty darn good round for an amateur, you need to get up and down a bunch.
2) What methods did you follow? Did you pick and choose from different instructors, books, DVDs, or even just watching tips on the golf channel? Did you follow a single set method/book/DVD/instructor and follow it like it was your bible?
I take about three 30 minute lessons a year and will watch Golf Channel for random tips.
3) What does it take to score in the 70s consistently (in your opinion of course)?
--Enough distance to get to all par fours with mid irons or shorter for approach shots.
--great short game