Apollo asked me to lock HEPI so they could finish torquing the dome on BSC9, so this morning ~8am I went to the end station. Did not use the IPS because DI's are still on the chamber, so I was probably more disruptive than normal, but Apollo said they would probably have to walk on the cross-beams anyway. Apollo is done now, so we will unlock when needed or convenient. This and HAM1 should be the only HEPI's in HIFO-X chain that are locked now.