I too had a LO who was ready earlier than most. I started with just little bits of cereal mixed with breast milk. He took to it very quickly at 4 mos, and ate very well. We then progressed on to pureed veggies/fruits, yogurt, then meat. He had 3 meals a day along with BF at 6 months old, which IS early, but for my DS, he was ready.
I don't think there is any harm in trying just a small amount to see his reaction. If he's not ready he will probably show you by pushing it back out of his mouth and turning his head away.
You know your LO better than anyone else, don't feel like you have to rush into it, but also, don't feel scared to try something if you think your LO is ready. Every child is different.