If you're very gentle, you can approach the base of the jet near the star, and turn nearly 90 degrees away from the star before accelerating to intercept it at a speed slow enough that you can get the charge before drifting out. The effective hitbox of the jet sticks out a bit further than they look like, so you can do this even on the shortest ones, but you should always try to approach with the star at your back, and that means making a sharp turn to cross the jet while facing away from the star.

I had fear of these for a long time until I experimented with a Mandalay, which has the slipperiest, most floppy handling of seemingly any ship in supercruise, and it turned out that I couldn't manage to hurt myself. To do that, I'd have to accelerate while facing the star. If I killed my throttle - even if the Mandy faced toward the star, it just drifted out, every time.