We have 3 switches at the moment - see the diagram below for NOW. Essentially the CORE switch is 7, and 8 and 9 have a 3 cable trunk each to 7.
Now, we want to add Switch 5 to the equation - see AFTER - would this be a suitable way of configuring the trunks. Or create a new trunk on Switch 8 and Switch 9 (say Trk3 and Trk4) rather than creating Trk1 and Trk2 on Switch 5 and taking one cable from the existing Trk1 and Trk2 on Switch 8 and 9 respectively and connecting to Trk1 and 2 on Switch 5. Do the names and groups actually make a difference if connected to different switches.