Electron energy loss spectroscopy (EELS) -spectrum imaging (SI) was performed at 300kV using an image-corrected Titan3 G2 60-300 with a monochromated Schottky-FEG and a Gatan Quantum with both an UltraScan 1000 CCD and a K2 direct electron detector. EELS was acquired in STEM mode with collection (β) to convergence (α) angle ratios of β/α = 1-2. No significant variations were observed with larger β/α ratio tested to improve the S/N. Data was collected with a dispersion of 0.1eV/channel. Dual-EELS was used for energy shift correction but was not available with the K2.