Asynchronously operating systems, such as tapped delay lines, are the designer's favorite, if high resolution and precision in time are required. Their drawback, however, is that they require extensive calibration, which prohibits, among other things, sporadic recalibration during the mode of operation. In order to reduce the calibration duration and the amount of human intervention, this paper suggests a hybrid approach: Rather than tightly coupling two time measurement systems that calibrate each other, this paper fuses two different elements, known as X-ORCA and BOUNCE, into a hybrid, called X-BOUNCE. In the practical experiments, X-BOUNCE has reduced the required calibration time from 30 minutes to one second and has abandoned any human intervention. Furthermore, every X-BOUNCE element can be realized by just one FPGA-LUT, which allows for easy scalability. Unfortunately, some elements exhibit a calibration inaccuracy that can be as large as 300 ps, which is also addressed by this paper.