Thank you, Alice! I think it sounds perfect for us. I do think that I am going to hold off one more year, sigh, and start it next year when my oldest is in 3rd grade, my two middles are in 1st grade (one of these two is adopted and will need this year to learn to speak English), and my youngest will be almost 4. I can then start them all together.
Or, I can start my oldest this year, alone, then cycle back through with all four kids for a second year, then again a third time and they will all have experienced a good chunk of the Junior program.
Thanks for helping me think it through and for explaining how we can make it work for 2 or 3 years, which will be best for our family.
Take care!