emcdee
1
Real quick, what am I missing past the html render example?
Means the request.params.cust
shown here returns no value 'in my rendered html -

See it missing in the brackets here -

Whereas I’d expect it to be there per example -

Thanks, forgive if it’s obvious!
I stared at this for a loooong time before I figured it out so don’t feel bad. 
The <tr>
and {{this.ID}}
indicates to me that you are rendering this inside of a loop, which means the root of your Handlebars context has changed.
So, you need to ‘go up a level’ to the parent object of the value you are iterating over:
{{../request.params.cust}}