It may be that we might not get a straight answer in the sense of an unequivocal YES or NO from Ilford if we asked it questions Unless its R&D has tried it at lower dilutions than 1+14. It would seem that from a practical aspect anything close to 1+100 requires 5 ml of concentrate in a 500 ml tank and that's a long way below the 1+14 which involves a small trade-off in image quality but of course we'll never know unless we ask the question of Ilford or try it at ever increasing dilutions until we get the point of serious impact
Once again Ilford's answer is likely to be tempered by what it regards as the dilution that gave its R&D dept its minimally acceptable image and this may well be 1+14
pentaxuser