Discussion on the selection of the calibration data set

[beep-bebop]

Is using SFT data directly as calibration data the best option? Does it cause performance fluctuations when I have more (e.g. 28w) or less (e.g. 1k) fine-tuned data? Also, would using datasets from other domains as calibration datasets cause a gain or huge loss in performance? Thanks for sharing your practical experience.