Thanks,

I understand the initial call to sql server requires parameters be copied. I'm not asking the question very well, I guess.

In the following chain where SPR1 and SPR2 receive the same varbinary(max):

Call from client to ->SPR1: we get a new copy of varbinary(max) created on sql server.

...SPR1 does some stuff...

Call from SPR1->SPR2: ?? do we get a new copy of varbinary(max) with associated memory hit.

...SPR2 returns, SPR1 does some more stuff...