Always remember to add strong flavours i.e. flavours that are heavily concentrated like lemon juice, in small quantities. It's always better to have a finished product with a subtle hint of the flavour than an over powering flavour. Once you've established that you didn't have enough flavour the first time, you can then simply increase the dosage a little each time you make a batch until you get it right.

If your using a flavour that has a sugar content don't forget to adjust your sugar quantity. You always want to have approximately 18% sugar content in order to arrive at the proper freezing threshold.

The best flavours are fresh fruit and fresh fruit juice. The fresher the better. If your using fresh fruit pieces it's probably better to add them to the mixture towards the end of the freezing cycle so as not to gum up the blades of your small domestic machine. If you do it this way make sure the product isn't too hard so that the pieces have a chance to be fully incorporated into the finished product.