When doing a full battery discharge, how long to wait before recharge?

I use my 17" MBP as a desktop computer. Never need to travel anywhere with it, and never need to use it on battery. But I know that to maintain the health of the battery, it needs to be used. So I'd like to know the following:
1. Apple tech support informed me that when I fully discharge the battery, I should keep it in that fully discharged state for six hours before recharging it. This is quite inconvenient, as it requires careful planning to ensure one won't need the computer for six hours when the battery runs out. Which causes me to do full discharges less frequently than perhaps I should. Does one really need to wait six hours to get the benefit of the discharge? Or can one plug the power adapter in immediately when the discharge is complete, so as to be able to keep using the computer?
2. Some Apple staff say one should ALWAYS use the computer on battery. And only use the power adapter as a battery charger-- i.e. don't use the power adapter routinely to power the computer. Only plug in the adapter when you need to charge the battery. Is this true?

Thanks to both of you.
@eww: Yes, there was another question in my mind which both you as well as the thread you referenced, address: the need to use the battery frequently but lightly. This is a new concept for me, and I did not get guided at all in this direction by the tech support staff at apple. So reading the info you've given and referenced, it sounds like the best usage is frequent, partial use of battery. And recharging each time, before it is fully discharged. With full discharge and recalibration only once every 2-3 months.
Two different tech support people at Apple told me that whenever I do use the battery, I should use it all the way down. Do not do partial usage. And it was one of the tech support staff in the Apple Store in Annapolis MD, who told me that I should ALWAYS use the battery. There was no misunderstanding; I spoke to him for about regarding related points on battery usage. And if you ask the tech support staff how often calibration should be done, you'll get different answers every time. One told me every week, another told me every month, another said he wasn't certain what the best schedule was.
If you still have access to free tech support, do an experiment-- call the tech support line 4 or 5 times, and ask the same question each time: optimal strategies for battery maintenance, for someone using a MBP as a desktop. I did this 5-6 times in attempt to find out the best approach, and got different answers every time. And NONE of the staff gave type or detail of information which was provided in the reference you gave.
So thank you very much for your help. You have made the matter really clear!

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Forestman wrote:
I got a 15 inch MBP in August 2011. This is my first Apple laptop. I would sure appreciate some help on this one.
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When doing a full battery discharge, how long to wait before recharge?

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