Three weeks post open coil spring (5 months post initial banding), there is a space between LL2 and 3 (Fig.8) and between LL3/4 (Fig.9).  The latter reduces instantly post power chain between LL3 and 6 (Fig.10).

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Xin Wei, DDS, PhD, MS 1st edition 08/30/2018, last revision 08/31/2018