Quoted from Jean-Luc-Picard:
However, it is still almost impossible to hit the left ramp. The only time I can get it, is when I pop the ball up the right side and as it builds up speed and I hit it perfectly. I make the left ramp.
The left ramp shot is not a gimme. Some games, the ball goes up the ramp several times for me, while other games, I can never make it once. Usually the shot is done while the ball is in motion. It has a very small sweet spot, but when you hit it correctly, the ball easily makes it up smoothly.
Often, a failed shot can go half way up the ramp and back to the upper flipper, which can be immediately hit back on the fly, and sail quickly up and over that ramp.
I think it's a fun shot, and it makes the combo insert one of the more rewarding segments to complete.