I note that the google doc shows different parameters than the configtool has for 'Slice Engineering high-temperature thermistor', so I wouldn't use the built-in preset.
The preset will give you more accurate readings than using C=0 and the R25 and beta values from that document. Using just R25 and beta values will give significant errors at some temperatures, especially when using a thermistor with a wide temperature range. The preset includes a C term, and when you use a C term, the B term has to change too. The B and C terms used by the preset were calculated using R-T values from the table provided by Slice.