It's funny but I was just thinking about Dublinpilots post and he makes sense, but I've found a wierd thing happen as I got more experienced. When I jumped in and out of different aircraft I noticed the differences even more. They didn't bother me or change how I could fly the aircraft, but it's just that I could feel the difference between individual aircraft and how they responded.
New aircraft that were behind eachother on the production line feel totally different to fly, let alone some baggy old Cessnas that have been bent, dropped and generally abused for the last 20 years!