I would like to ask about the usage of the verbs "to try out" and "to try".
For example, when we say:
I am going to try a diet out this month and I hope it is going work to help me lose 10 kg in a month.
I am going to try a diet this month and I hope it is going work to help me lose 10 kg in a month.
Is there a difference in terms of meaning? I have heard there could be regional differences in usage as well; is that true? (I mean is one or the other maybe ok in the US but less common in the UK?)
When I look up "to try out" in an online dictonary it says "to test or use somebody/something in order to see how good or effective they are". So I noticed that we need there to be a thing to try out. But, I reckon, another verb must follow if we only use "try", for example:
I am going to try to run 10 miles today.
I would like to ask you to check if my other sentences below are ok in this sense.
Hey, have you heard? A famous kebab shop chain has launched a new branch in town. The restaurant itself is pretty big and the prices are 50% off for today. So I am going to try it (out) today.
I am planning on buying new stuff for learning English. I found out there is a video series which is provided by Oxford University. But before I buy the whole DVD set, I am going to try out the demo in order to see if they are useful to me.
I will try out a new antivirus software as the last one I bought was not able to prevent viruses from infecting my computer.
I have bought new chemical-proof work clothes so the workers can be protected from hazardous materials in the factory. Have every worker try them out, and make a report if it works for us.
I will try out the LG3 smart phone to see if it is worth buying.
I will try to use this grammar book for my dissertation this time because the old one is pretty out-of-date.
(I am aware that there is another thread on this topic on this site. I wrote this down after reading that thread, because it doesn't fully answer my questions. This question is not a duplicate, more like an extended version of the existing one.)
Thanks in advance!