addroverride=1 doesnt work in sandbox

[flac_man]

I have tried setting noshipping to 0,1,2.  When set to 1 I do  indeed see that the shipping address is suppressed from the expresscheckout cycle.  However, I am trying to force the shipping address from my site through to the checkout process.  I am using this :

'&ADDROVERRIDE=1' .
'&NOSHIPPING=2' .
'&PAYMENTREQUEST_0_PAYMENTACTION=Sale' .
'&PAYMENTREQUEST_0_SHIPTOSTREET=2444 Main Street
&PAYMENTREQUEST_0_SHIPTOCITY=San Juan
&PAYMENTREQUEST_0_SHIPTOSTATE=CA
&PAYMENTREQUEST_0_SHIPTOCOUNTRYCODE=US
&PAYMENTREQUEST_0_SHIPTOZIP=95131
&PAYMENTREQUEST_0_EMAIL=XXXXXXX
&PAYMENTREQUEST_0_SHIPTOPHONENUM=321-559-5948'

for testing and it still shows the PayPal address options and does NOT show the NVP options.  So, I thought, perhaps it;s being blocked in my seller options.  When I go to my seller options in Sandbox, the page redirects to home on the option that I need:

So, I have tested with and without the noshipping option and with addroverride set to 0 and 1.... But, I always see the PP shipping options in express checkout:

What should I do to test?  If I send a static test with all the proper info from examples, it does not work.