Mana vs Concentration pots

So, while deliberating the ins and outs of paladin healing this week with my guildies (mostly, my paladin partner in crime, Siha) we came to a bit of a realisation:  I was mana potting, she was conc potting.


What exactly is the difference?

Mana pots give you a one shot 10k (approx) hit of mana.
Conc pots mean you stay put for up to 10s and gain back up to 22K mana (more if you are an alchemist - which I am not, so I dont know the details of the buff there).

Here is a bit of an analysis I popped on our forums trying to figure out which was better (slightly edited for a couple of errors I made and were pointed out to me):
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So, 10s of silence with a concentation pot gives a guaranteed 22k mana. But you cant do anything else. For 10s.

vs

A mana pot (quick 10k) plus hitting the boss. Seems like the proc rate of insight is about 30-40% per successful melee hit giving around 937 mana, with a judgement doing about 3.5k, but also leaving you free to heal or do other things.

So in 10s a mana pot (10k instant) plus 2 judges (7k) plus 5 (ish) hits with a proc rate of about 2 of them returning mana puts you about 2 k behind a conc potion, without having to be immobile for 10s (ie you can WoG or HS or anything else at the same time)

Thoughts?

I think it is situational. Clearly, Magmaw favours conc pots (probably bracketed by judgements to maximise regen) but I suspect other fights might favour the mana pot.
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Siha added that coinciding DP with a conc pot would really throw you back up in the mana stakes, and I said while that is a good idea, (I mean it really IS a good idea, and one of which I should have thought), it didn't change the math because both mana pots and conc pots could be coincided with DP.


So people - what have you experienced? When is it a good time to mana pot? when is it good to conc pot?