Nope, no upset tummy here. We started at 6 mths, DD wasn't much interested and we went with BLS. She really started eating at about 7-8 mths. Seems she knew better than I (or the books) when she was ready.

Actually, one of the reasonings behind BLS is that a baby's digestive system is ready for food other than bm between the ages of 6 and 9 mths. That's quite a range!