Sorry, I can’t say if the buffer details are identical, however you can make up some of the buffers yourself and recycle the tips. One group published their method a couple of years ago: Article A cost-effective approach to microporate mammalian cells wit...
The E2 buffer has higher osmolarity than E buffer. Higher osmolarity prevents the leakage of electroporation content from the 100 µL Neon® tip, which has a larger hole at the tip end than the 10 µL Neon® tip (pore diameter of the Neon® tips: 100 µL tip = 2.10 mm; 10 µL tip = 0.65 mm).
If my understanding is correct, I could use buffer E2 for 10ul tips, but not buffer E for 100ul tips.
Wondering if you experiment using E2 for 10ul worked? I have done that because of a mistake I made yesterday and cells survived. Not sure how good the transfection was. Thanks!