They are both important tools and important additions to your equipment.
In my brief experience, unless you do a full boil batch, OG is tough to measure accurately. The added water creates a layering effect and my readings have been typically low compared to my beer calculus estimations. I do think that it is still important to take an FG to see how well fermentation went compared to estimations.
Now who makes the best LME? What is a good brand to go with? Im seeing Coopers all over the place. Is that like the McDonalds of Extract? I now have everything I need to get started minus the ingrediants so now thats the mode of my research Im in now. Thanks man!
Do you take your OG before you pitch your yeast?
Any water that you may add, to make 5 gallons for example, should be well mixed before you take your gravity sample.
Liquid of different gravities will not mix easily on their own so before taking an OG make sure any water added pre-pitch, has been stirred well!
The extracts have the sugars, there is no Mash efficiency to figure out, I have just come to accept that the dilution makes the OG reading less reliable. On my patch of Milk & Oatmeal Stout, the best reading I could get was 1.034 when it was supposed to be 1.060 based on the recipe.
YAY!! Im going get a few things today for my next batch! Im going get my digital thermometer and my thermometer for my Carboy! I got a propane burner yesterday for my next batch. Next is my carboy and my stuff to clean and sanatize that!!!!!!!! I also need to get my plug for carboy and a blow off tube(just in case) and then Ill get my ingrediants! I should be boiling in anouther week or two!!!!!