Two shipping by weight options

Hi,
I was wondering if someone could help me out.
I have two shipping options that I would like my clients to have. Both options use the shipping per weight. The rates are different though, because one ships faster than the other.
I was wondering how I could configure both of them separately so that clients can choose which one they want.

Thanks
Rishi.

You could duplicate the shipping module you're using and set it up with a different cost and language definitions...

Thanks for your reply. Actually I cannot use that method, let me explain why.

I have 2 shipping options

Shipping option 1: ( 10 days delivery)
Less than 50 grams = a $
Less than 100 grams = b $
Less than 150 grams = c $
And so forth

Shipping option 2 ( 5days delivery) is similar but different rate.

The way I thought of doing this right now is manually entering the shipping price as the weight (after categorizing) because per Weight unit shipping works as : Product Quantity * Units (products_weight) * Cost per Unit. I set cost per unit to 1 then get the price of shipping as per the product.
Hope am not confusing. Am I doing this the wrong way and is there an easier method?

Thanks.

Then use Table rate and duplicate Table rate. You'll get exactly what you want.

You can create a DUPLICATE of the module:

SEE:
http://www.zen-cart.com/forum/showthread.php?t=115687

Thanks for the reply,

So I have tried to duplicate the table rates as instructed by the thread you linked. His instructions are for duplicating flat rate, so I adapted them to table rates. The thing with the table rates, there is much more text, and some things that should not be renamed. I looked at this thread
http://www.zen-cart.com/forum/showthread.php?t=69665
for reference as to what should be renamed and what should not. The rates.php files for v1.5 are slightly different.

Anyways after uploading the new duplicates, I went on modules->shipping I got an error message and the rates duplicates do not show. When i delete the files it works fine. So there must be some renaming issues.

Any help would greatly be appreciated.
Thanks

Read through that entire thread... There is not point repeating what is said there. Follow the processes, and you will have a duplicate module.

LOL... There's a duplicated module in the add ons section... Take a look here. I think it should work on 1.3.9h, but anyone please correct me if I'm wrong.

So, in your case, you'll set up the original Table rate module to 50:a,100:b,150:c etc and the cloned one to 50:aa,100:bb,150:cc etc

It's really really simple...