Janey I think that at that time of year you will be ok but like US & IOA alot of the locals with annual passes use these parks at weekends.We tend to go during the week unless for a specific reason.
SD
Simon is as per his website going to post his busy day guide for the rest of the year. We have a few issues at the start of the hols in October but would appreciate some guidance after buying the book year after year....
We was there last October, Sunday the 26th it was, and everything was a walk on. I think the maximum we waited for any one ride was about 10 mins and that was for the most popular attractions.
We have visited Busch Gardens five times now - all on weekdays in August (supposedly a busy time of year). We have never queued more than 20 minutes for any ride - many rides first thing in the mornings are walk-ons. Same applies later on in the evening.