The .001 really won't really make a difference. Twenty plus years ago when I started this hobby the recommended level was 1.021 and you we're nuts if you ran 1.023 ! Like Jim and Manoj stated accurate measurement and consistency will do wonders. When it comes to softies I have noticed when you reach +1.027 you will notice less extension . I would be much more concerned about maintaining alk,calcium and mag levels then .001 SG
+1 --- I thought I was the only one that recalls 1.022 as "the standard!"
Detroit's oldest large LED tank! Est'd Jan 2005, went LED June 2009. 6' wide 130g reef, Sunbrite T10 LED tubes (3xGen 3 and 1xGen 1), mostly SPS, but chalices, other LPS, and a few softies too. http://pjr-reef.blogspot.com/