I wasn't aware of that Tony.
I've just reinstalled V1 and had a look. There are quite a number of differences between the drift explorer in V1 and in V2. Notably being able to set the camera angle (so you don't have to have the guiding camera perfectly square), reset target, reverse RA and Dec, scale the graph, create a guide log that can be exported to excel, determine max/min arcsec readings, and standard deviations. The main tool bar also comes with tools for long exposure controls.
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