ned-ers route via hx is short agree but income wise not upto mark
thats the reasons every spl from sc/hyb go via gnt or bza follow sabari route
ya a weekly can be tried as regular train with small rake
regarding nanded -ers pgt cbe is see less takers from ned side
if...
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good lobby means a weekly can be looked
kc-maq is alternate for kcg-ers /cbe train

NED is just being used as a terminal here to get a rake so that SC division can run another special via WL-KMT-BZA-Ongole route ..
and regarding the route, these trains are for kerala people and they dont bother whether its going via GTL/BZA/GNT ...all it matters is whether iots going kerala or not...so that why SC divison not runnig 2 specials with 1 via trunk route and another on KRNT-RU line where sabari is serveing the GNT line...
regarding kcg-maq...original request was via shiradi ghats however SWR did't agreed to run in...
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via ghats and SR not agreed to give arrival slot at MAQ if via Shiradi ghats but agreed to give if it runs via Salem-srr route...thats how it materialized and it runs with pretty good demand with lopads of end to end passengers (i have travelled in this and i know how good the demand is)