I (well, mostly the nursery) started potty training DS (27 months) this week. So far, so bad - only one wee in a potty. Anyway, the main reason for this post is that I've found both the potty and loo seat bought from Mothercare to be much too small - it's a squeeze to push his willy down and seems uncomfortable to sit on for any length of time. Is this a common problem with boys? Can anyone recommend a more capacious potty? Any advice appreciated.