I've heard that the hatchling season of 2010 being referred to as the "Year of the Twin" on a few forums.
My question to you is this: are two heads in one egg really a good thing?
For those of you who have hatched twins in '09 or earlier; (no offense, but I'm not interested in those who hatched twins this season).
With the obvious smaller size of twin hatchlings, how many really survive to 'yearlingdom' or on into adulthood? Have you found that their diminutive weight has put them at a disadvantage developmentally or that they can, and do indeed, catch up and thrive as their larger clutchmates.

My personal experience has been less than positive; twin female het clowns in 2009 that weighed in at 24g & 27g.
They both shed a week after leaving their egg, with one refusing to eat. She passed at 2.5 weeks of age.
The second female ate well, but never really caught up and passed at 9 weeks of age.
This season, I have an egg in my incubator right now that hit on what I was hoping for; a triple morph combo that pipped yesterday. Twins; both exhibit the triple gene combo. Only time will tell, but with my previous experience, I am not optimistic.
Your experiences with twins would be interesting to hear.