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Somewhat erratic comma unpredictable long-term starspot cycles of late-type stars are relevant for understanding the Sun.s analogous high-energy modulations comma in turn crucial to Earth-impacting d_commaSpace Weatherd_comma (SW). Similarly comma stellar SW counterparts can have eqivalent comma or more severe comma adverse effects on their exoplanets. The solar decadal oscillations are symptomatic of a deep-seated magnetic pump -- the Dynamo -- whose internal workings remain elusive. Key questiondoublePoint is Sun.s 11-year cycle normal comma or instead a transition statequestionMark A 3-year continuation of previous long-term Chandra-HST programs will be carried out for Alpha Cen AB (G2V+K1V) and Procyon (F5IV) comma nearby bright stars that bracket the Sun in their fundamental stellar properties. HST part of the program will measure FUV subcoronal (Tvirgul100 comma 000 K) emission lines comma like Si IV 140 nm and C IV 155 nm comma as well as the important NUV chromospheric (Tvirgul10 comma 000 K) emission doublet of Mg II at 280 nm comma in all three stars comma with one visit of STIS echelle spectroscopy per system each year. Non-standard wavecals provide better wavelength calibrations comma so that subtle Doppler shifts of the high-excitation emissions can be assessed. Dynamical information also is encoded in distortions of the line shapes comma captured using combinations of FUV medium- and high-resolution echelle settings.