Consulting RDA is time consuming. Just one example. We are told: "1.8.3 Numbers Expressed as Words Substitute numerals for numbers expressed as words."
with no indication of where that provision applies, nor reference to rule numbers where it applies. Of course we would not apply it in 245, and according to one example, it would not be applied in 250.* But where else do we apply it? Is there a difference in 490$v and 830$v application? We are told at each element by number what other rules apply, but one must then consult those rule numbers. It's all very fragmented. "2.5.1.4 Recording Edition Statements Transcribe an edition statement as it appears on the source of information. Apply the general guidelines on transcription given under 1.7 rdalink. "EXAMPLE ... Second edition ..."