Increasing the concentration of the crosslinking agent (C Ca 2+ ) results in decreases to both the degree of clog occlusion and time of formation, as observed through ∆P (t). Fig. shows ∆P (t) for calcium concentrations between 10 and 200 mM. The traces in Fig. are truncated at 350s to better display a comparison between the conditions. However, each flow test runs for between ∼ 1000-20000s total, with between ∼ 20-120 peaks in each pressure trace, as indicated in Table . Increasing C Ca 2+ only slightly decreases the size of features in ∆P . At C Ca 2+ = 10 mM, the average difference in driving pressure between baseline and clog ablation (∆P 0 -∆P Abl ) is 311 ± 108 mbar, while at C Ca 2+ = 200 mM, the average is 194 ± 183 mbar. These peak sizes represent a factor of ∼2-3 increase over the baseline driving pressure, ∆P 0 ∼ 100 mbar. Much more dramatic is the change in ablation frequency, as measured by the inverse of the peak-to-peak time difference between ablation events. Within the 350 seconds shown in Fig. , the C Ca 2+ =200mM condition exhibits 10 deposition/ablation events while the 10mM condition has only 1 event. Consequently, the frequency of ablation (f ) is much lower as C Ca 2+ decreases. At C Ca 2+ = 10 mM, f = 0.19 ± 0.06 min -1 , while at 200mM calcium, f = 7.62 ± 3.26 min -1 , with error bars determined by the number of events given in Table . The increase of f with C Ca 2+ is seen in Fig. . As C Ca 2+ increases by a factor of 20, f increases by a factor of ∼ 40.