Alchemy_–_when_do_you_get/make_discoveries?

Just DING¡¦d 68 on my "huntard¡¨ hunter, and have 375 in ¡¥erbs and 360
in alchemy.
I was wondering when do you start discovering other recipes from
making potions or elixirs etc.
Up to 360 in alchemy I haven¡¦t yet made one ¡K is there a lvl
requirement, or a skill requirement?, or is it just luck?

Also a further question, what is better to be a Master of Potions,
Elixirs, or transmutation?
My thoughts:
Transmutation ¡V I¡¦ve heard the additional proc rate is low.
Healing and mana potions, I¡¦ve so many from drops that I don¡¦t really
need them for any character for PVE ¡V however when I do venture into
the world of the BG I use loads of them ¡V so I would expect there is
still a market / requirement for them.
Also when we run instances ¡V they are always handy to have if the
healer misses a heal.
The benefits of elixirs are also great for instances, and in great
demand from friends and family alike.

So which way should / ought I go?

Looking at the quests for Master of potions/elixirs ¡V both will need
some investment in time in Temple Keep or Caverns of time ¡V I might be
a little underpowered in lvl and gear for those 5 mans right now. ļ

Or do I need to grind some rep for more recipes get to lvl 375 and the
discoveries will come, and by then I will get an idea which way to go
¡K..?

I forget if there's a level req. but beyond that Discoveries "just
happen" when you're doing your normal crafting stuff. I haven't had
one for quite awhile. But there's been weeks where I've had two.

As far as Mastery... it depends what you plan to do with your char,
really. For example, if you're participating frequently in guildie
stuff, then you might want to see what Mastery would better
synergize. Caution: In attempting to find this info you may become
the default "potion or elixir guy". Which may seem nice to be needed
at first, but can become a burden.

I chose Transmutation because I don't want to spend alot of time
gathering stuff. Nowadays I usually play for about 2 hrs/day so I
don't want to spend time farming/gathering - just wanna go play. I
dropped Herbalism for Tailoring, so making potions/elixirs would
require me to buy herbs. Transmuting is a low-maintenance money
maker. For example, even if I don't have time to "play" WoW, I'd try
to jump on an do my Transmute for the day. While the proc rate seems
low, the cost of the items you create is generally high so even one
additional can mean a lot of gold (by "a lot" I mean relative to the
effort). For example, buy a Primal Earth from AH for 3G, sell a
Primal Water for 20G. Get a proc during the xmute and your 17G profit
jumps to 37+G. Buy 85G worth of mats for Earthstorm Diamond, sell the
Diamond for 125G, profit 40G. Get one additional proc... 165G
profit. Both examples take about 3 minutes of AH work.
OTOH, you could make more gold if you put alot of effort into farming
mats and selling large amounts of popular Raid potions/elixirs, or the
herbs themselves. Depends on whatcha wanna do.

At any rate, if you decide to go Xmute, pick potions anyway. Cuz the
Xmute Mastery quest has you making like 5 Primal Mights to turn in.
Those 5 cost more than the 150G to switch Masteries (once you're a
potion master).