eDrive Space Not Released

Creating eDrives works flawlessly for me: designate the drive to partition and TechTool goes at it and creates the eDrive. The opposite is NOT true: when you Remove an eDrive, you do indeed wipe out the eDrive, but TechTool does NOT release the space back to the original drive. Instead, it retains the partition and marks it "Free Space." This effect is cumulative: if you remove and create a series of eDrives, TechTool does NOT use the space created for the original eDrive; instead, it carves out an additional 22 GB or more (based on settings).

The only way to reclaim that free space back to your original drive (that I know of) is to use Apple's Disk Utility. However, that does NOT work unless you boot your Mac from another physical drive (like Protogo). If you try to delete any "Free Space" partitions without booting from an external drive, then Apple's Disk Utility will return error messages that it is unable to complete that task.

I would think/hope/request that MicroMat minimally inform users of why 22 GB chunks of their drives disappear and instruct us how to rejoin that space with the original drive, or do what it logically should do: when you "Remove" a hard drive, TechTool should release the free space back to the original drive. Otherwise, we have huge chunks of wasted space from the drive.