On this dev link, when you click the explore menu, note the overshoot. And that links to a custom module on Grid1 with only some code in it. The Explore module is actually on Grid5!

I have no idea how to solve this but it crops up repeatedly - no doubt because I keep coding the height of the navbar/logo position in this template (and some others) in order to keep the logo on page.

Do you have any thoughts? It's waaaay to early to even start to begin to think about an IPA.

Its always beer oclock somewhere though isn't it?

In the tpls/blocks/script.php look for this code:

$('#navwrap a,#off-canvas-menu a,.smooth').smoothScroll({
offset: -120,
easing: 'swing'
});

and adjust the offset value so it matches what you need. Don't know if you need to make it greater or smaller but it will fix it for you.
Thanks

is this something i should do with a template override?

With this you can't

Cheers
Paul