gpc_order and track_vars

I've been having a discussion with one fellow regarding variables from outside PHP. What came up boils down to the fact that there is presently no way to keep incoming get, post, or cookie data from being placed into the global symbol table without also preventing them from being placed into $HTTP_*_VARS. i.e. setting 'gpc_order = gpc' and 'track_vars = on' incorporates incoming data into both the symbol table and $HTTP_*_VARS, but setting 'gpc_order = ' and 'track_vars = on' means that no incoming variables can be accessed at all. It has been suggested that a way to allow the $HTTP_*_VARS arrays to be filled, but not the global symbol table, would be good for forcing programmers to know where the data is coming from. Anybody have any thoughts on this? Torben