Re: [santamaria] When are you ready to base?
Hey dude, from the point of view of another person who is in your shoes - I had 56 skydives about 8 weeks ago (now have 139), and one of my goals when I started skydiving was to eventually do wingsuit BASE in Norway.
I think the gain experience approach is the way to go. The pioneers of the sport have already pioneered the sport... from their trials and errors, the current guidelines have been developed, and to me they make sense.
I just ordered my BASE canopy (no rig), have no plans to BASE jump anytime soon, but I want to practice with it to make sure I can land accurately, using a student rig at my DZ.
In my experience, if you tell people at the DZ what you are doing and your methodical approach to BASE, such as practicing cross wind landings or whatever, they tend to respect that. Just do it away from where everyone's landing

In general when people see you putting your heart and mind 100% into anything, it makes them want to help you.
As for age - not everyone has developed the same at the same age, I had my own business at 19 although I still was pretty hot headed with certain other aspects of life, a trait that would not have been good in BASE. But lots of motorcycle crashes taught me otherwise :) Some people just learn the hard way. Some people don't get there when they're 40... just depends on each individual life experiences. The guy that got me into Skydiving was on a 4-way team with 300 jumps at age 19, doing competitions.
And as for jumps - much like everything in life - it is not quantity but quality that makes jump numbers important. I'm sure everyone agrees if you do 500 jumps, just pull, land, never try to steer with risers or do flat turns or learn how to track, those 500 jumps are more or less wasted. Just time getting used to being in the air.
However if you focus on a BASE related skill on every jump, such as tracking and canopy control, obviously you can achieve in 300 jumps the same as someone who spends 500 jumps doing whatever and then decides to practice the same drills, in 800 jumps they will be a better freeflyer (or whatever) than you but those 300 jumps will be on equal footing.
In line with that, I recommend doing lots of coach jumps. While it seems expensive, you can learn much faster than just flailing around the sky on your own, because you are learning technique and you have someone video taping you to break your bad habits before you make them. Although for BASE it seems the only relevant freefall skill is tracking. Canopy control courses are a huge help, too, and you can take them as a beginner and as your skills advance.
As for me I can barely land in the pea pit as it is, so I know it'll take me lots of jumps to get comfortable enough with my landing skills before getting into BASE. But at least by that point I'll have jumped my BASE canopy and be very familiar with it, and not trying to figure it out in 5 seconds of canopy time off of some bridge
Happy learning!