Pantsu is pronounced with Pah-n-t(hard T)su style... while Pansuto would be Pah-n-su-toe... XD So yeah it's a little different :3 I wish I could record the differences... XD the Su usually comes out like 'sue' would, and sometimes the su vanishes completely in some works. Like Suki (to like) which is pronounced Ski (like to ski) - and in Desu where the su is /not pronounced/. It's more of a des, not de-su... Saying it desu makes you appear like an adorable idiot most of the time -or an annoyance... XD