Stored Procedure Only Returns First Character

Question

I am having an issue with ColdFusion MX7 and a MSSQL 2005 DB.
I am able to duplicate my development issue with the following simple example
-- SQL Code
CREATE PROCEDURE myTestProc
    @myString varchar(36) OUT
AS
BEGIN
    set @myString = 'This is my test';
END
GO
-- CFCode
<cfstoredproc procedure="myTestProc" datasource="#dsName#">
        <cfprocparam cfsqltype="cf_sql_varchar"
               type="out"
               variable="vars.myString" />
</cfstoredproc>
<cfdump label="testProcReturn" var="#vars#" />
<cfabort />
This is what it returns
testProcReturn - struct
myString
T
I have tried many, many, many variations of CFSQLTYPE and the datatype in the procedure and not once have I got it to return more than just the first character.

Answer 1

I just discovered that the following works.  I consider it a workaround and not a final solution.  It appears there is something wrong with the way I am using cfstoredproc or there is a bug in it.
<cfquery name="testProc" datasource="#dsName#">
DECLARE    @myString varchar(36)
EXEC    myTestProc
          @myString = @myString OUTPUT
SELECT    @myString as 'myString'
</cfquery>
<cfdump label="testProc" var="#testProc#" />
<cfabort />
This code returns what I expect it to.
testProc - query - Top 1 of 1 Rows
MYSTRING
1
This is my test