Something to be aware of: There are various types of tail-wheels fitted to tail-draggers and they need to be set up correctly. It wasn't until I owned such an aircraft that I realised that there was quite an art to setting them up correctly!
It's worth spending a bit of time during pre- flight making sure that the tail-wheel is working properly. Look at the differences say between: Chipmunk, Robin DR 220, Piper Cub, Yak etc..