This could cause balance problems for one reason I can think of - fish to shards synths. The 4 Lightning to 12 (earth, wind, fire, etc) recipes are only Alchemist R1. Right now I buy lit shards and then buy a few stacks of fish from the NPC In Limsa to make Wind and Earth shards (because it's cheaper than buying wind/earth shards by far). However players (and RMT) could use this to flood the market with shards. Right now I have to Hasty Hand hundreds of fish and pay attention if Hasty fails (and then spam standard/rapid and pray).