1) SCH/WHM works just fine as a main healer at low levels; arguably better very early on because you get Light Arts and Regen before WHM does. You suffer from not getting Cure III until 30, but you shouldn't really be the only mage in a party that low anyway.
2) Most WHM gear before AF is fairly generic. You'll want wands with MND and then Light and Dark staves, and SCH is on the Seer's set so you're good early on. The answer changes at endgame; most of your good choices for SCH will be useable on WHM (Goliard, Yigit) but the Blessed/Noble gear is WHM only (and you'll also want some of the relic armor for both jobs).
3) By 75, most of the SCH I see go /RDM because many of the spells you'd need /WHM for are under Addendum:White. The divergence in invite rates will come as soon as WHM and RDM get haste and you find yourself without it, and that's a sticking point all the way up to merits. You'll likely have to team up with one of these jobs if you want to stay with pure healing, or open yourself to the nuking aspect as well.
For endgame events you're not really going to take a WHM's spot because they're going to be better at it. SCH has plenty of things to do as well, but you have to embrace everything the job can do and work with it.
So I get regen earlier than whm? sweet! I have only recently obtained regen and love to spam it in between cures, e.g. yesterday in JP party they mentioned i shouldn't use it as they already had regen from FoV, does it not stack?
Good to hear SCH can use the same gear that would mean I won't be reselling any low level WHM gear until my SCH sub is capped. (going to unlock it after work today and get it to 37 asap)
That just confirms that WHM75 will be my new main over SCH, I really like the idea of melee whm(dont hate me!)for solo/goofing around, blessed set so much hasteee and being all round god of healing /cheer! Despite normally teaming up with RDMs in meripos I still regard WHM as the best healer hands down.
**EDIT: new question, any rare/ex gear worth camping NMs for before <L50? There's a pilgrim(sp?) wand I need to get but that's all I have on my to-do list.
[i][sm]Edited, Aug 29th 2009 4:51am by ********************