Allowed initial parameter space to form huntsmen spiders (f_pulsar = 0.0) for an initial NS of mass 1.3 M_⊙ (left) and 2.0 M_⊙ (right). The term $M_{\mathrm{c}}^i$ is the initial mass of the companion to the NS, and $P_{\mathrm{orb}}^i$ is the initial orbital period. The color bar shows the final NS spins ($P_{\mathrm{spin}}^f$), and the gray stars denote the systems that formed diverging orbits but did not spin up to the MSP range. We show the end states of the tracks, if they encountered a dynamical instability (triangle symbols) or ended with one of the criteria for successful termination (star symbols). Converging tracks are shown by gray crosses.