Breaking in LiPos, how many people do this?

[HOTSHOT III]

As title really, I have a box of Ultimate Nano-Techs ready for this year's regionals which I haven't used yet.

When I started racing again in 2011 I read in an article about LiPos that you should charge and use new batteries gently for the 1st 3-4 runs to settle them and i've always done this, but it takes literally a day to do each battery properly and it's time I don't have between now and April 26th.

Would be good to hear from people who either do or don't do this and their experience of whether or not it significantly affects the reliability/lifespan of batteries