Nice short guide!
Could add pictures and more information though, for example to speculate to save your blue charms for Rune minotaur as it is 10k xp and only 1 shard? how that for 85+ gold and green chasrms provide little experience.
(Thats if you would like it to be an improved guide obviously, already a nice simple guide, just some ideas.)
Regards,
Direct.