K.H.
To be honest I never even gave my son the stage three foods. When he was ready for solids, as far as having his teeth and stuff, I just started feeding him regular foods that were appropriate for him that is. I kinda found the stage three foods a waste of money and just a way for Gerber to make more money, lol! Simply because it is food that you are eating, for the most part, but just in a jar. I would just stick with the healthy track that you are on and just use your instincts with what you feel is appropriate to feed your child.
My son started at his current daycare when he was 11 months old and they actually used real vegetables and what not and chopped them up really finely in one of those food thingys, sorry but cant think of the name off hand, been a long day.
Also try giving him more vegetables then fruit. Not saying that fruit is bad for you but fruit is naturally sweetened and it may lead to him having a "sweet tooth" later in life.