I'm also in a similar position! I brought home Twix in March and have been wondering when would be a good time to get him neutered... he's coming up to 20 weeks old
My other question would be - once he's been neutered does he need close attention at all? I'm going on holiday the first week of July (and then again the last week of July) and although we have a friend looking after him, I would want to be there for him if he needs a lot of attention....so do I wait until August to get it done?
Last question (and it sounds like a silly one!) but how do I see where his balls are?! I think getting him to even be still long enough for me to look will be a challenge! But how do I know if they are definitely dropped?!