When to put beef in to slow cooker?

[YellowStrip]

We've got a 1.4kg lean beef roasting joint, I want to cook it in the slow cooker but not sure what time to put it in for us to eat at around 2 tomorrow. Can I cook overnight or best to put it on as soon as I get up in the morning?

This one ?

www.bbcgoodfood.com/recipes/slow-cooker-beef-topside-red-wine-gravy

I'm doing a beef joint in the slow cooker, my intention is to put it in there when I get up (7:30ish) and cook it on high (at least to start with - I'll see how it goes and maybe turn it to low later on). Ours is 2.7kg. No idea if that's right as not done one before but that's what I'm going with!