DS skipped 1st after a year of K, despite being a young K (June bday). His READ teacher was also the push to get him identified & is just wonderful. He has worked with her since the beginning of K & she provides his "extra" stuff.
The school was great and came to us to ask permission to test him & consider the skip. They don't normally but felt he needed it. When he passed the end of the 1st grade math test & got his SB5 & WJIII scores, we decided to let him try.
He's now in 3rd & it was definitely the best choice for him. Socially, it was a bit of an adjustment but he is an outgoing kid and found his way. I worry he's still not challenged enough & that is another issue. Good luck, it was a very tough decision for us!