I do agree that RLBL works on some and not others, but I don't think it'll become dated. RLBL looks great on me, the pants fit perfectly and the suit jackets fit great OTR. the regular blue label is just too baggy and the pants are so big that they can't be adjusted. However, with my friend who has the same chest size but a 2inch larger waist, the blue label fits him perfectly. the RLBL just looks too tight and skinny on him. So I really think that the RLBL and blue label fits are both classic, but requires different body types. I actually have a large drop, and find that this is exactly why RLBL doesn't work on me- chest and shoulders are cut so narrow that I have to size up, rendering the slim cut useless. Also, the blue label silhouette is cut in such a way so as to be very easily altered to fit my body (compared to most cuts)- even the pants, which come baggy, look great after a recut. Most significantly, taking a couple of inches or more out of the waist of the jacket does not throw the silhouette off or upset the coat's balance as it would in most others. The soft tailoring and the waist shaping already present really make it ideal for someone with a large drop, as long as they have a good alterations tailor, in the way that BL doesn't due to the very tight chest and shoulders (someone else mentioned this above).