The SCSI port of the Plus needed an HDD formatted for 1:3 interleave, ie a drive slowed down in data acquisition rate. Silverlining 5.8.x gives more control over such matters as block size, that interleave requirement and other matters, while still adhering to Apple's partition scheme (5, of which only one partition is the visible 'mounted' volume). Its GUI is rudimentary compared with those of Silverlining vv. 6.x.x, but a little playing will get you there as well as give you useful diagnostic information about the drive. Apple's utility (HD SC Setup) is barebones, laconic and useful only if there is no problem, such as needing to format a drive that does not include an Apple-blessed ROM.

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