Is the battery in the MS in a daft place like it is in the ST's , ie low down near the crud, water and general filth ?  'Cos I had 
 weak 'n feeble starting with mine, and if the temp dipped below 5 deg. no good at all as the gel congeals. On a bike that gets used very day, or did, and the guys at CMW said , wire in a couple of easily identified , ie colour coded 35A cables with bullet connectors to the bat. terms and when its cold start it with a "pony" car  battery , which I got for £nil =  from the local tyre place. Works a treat, spins up like a good 'un , even in  sub zero temps, so no probs. 
 However, there is a thread in last years 
 sites about batts, and the pooches pods 
 is an Osprey , or some such name, but I think that it was Shazaam who wrote about these things.
 Over & out.