Another nice thing about the Rene mkII + Tempi combo is that those two can work together in some exclusive functions that only that pairing is designed for. But yep, liquid_air is spot-on...going with a 7U Intellijel cab allows you to remove some basic functions to that 1U row, which then opens up more 3U space to functional modules. It also lets you move your external connections to the cab, taking a bit of spaghetti off of the jackfield itself.