A GaN substrate on which an epitaxially grown layer of good quality can be formed is obtained. Also included is an outer surface disposed proximate a chamber wall, wherein the chamber wall defines a chamber for the piston and the piston seal to translate within. A next step 406 includes sending a scheduling request at selected SR opportunities until a response to the scheduling request is generated. The system and method can be deployed over the web for quick installation and is executable on multiple platforms. In addition, the SuperTag cache is able to further improve the compression ratio by co-compressing contiguous blocks.