Welcome to BackpackGearTest.org, and thanks for your Owner Review. This is an excellent start at a first OR, and I look forward to working with you to get it ready for posting.
My edits below are in standard BGT format:
EDIT (all caps) required change
Edit (initial cap) suggested change or request for clarification
Comment just that, no change required
After revising you need to do two things. Post the html version of the Report in the Tests/Owner Reviews folder on BackpackGearTest.org, and post the plain text version here, with "Repost," the product name, and your name in the subject line, and with a tinyurl link to the html version in the body of your message.
Please note that while photos aren't required in a first Owner Review, we do require them in all subsequent ORs and in all Test Reports. I encourage you to include one in this Report.
Cheers, Richard Lyon
EDIT: You need a title for your review, at the top:
Patagonia Women's Down Sweater
Owner Review by Frances Penn
December 23, 2011
<<Date: December 23, 2011>>
EDIT: Delete this line, as the date should be part of the title.
Edit: You may wish to write this out ["fpenn at . . .] to discourage spammers.
<<Location: Costa Mesa, California>>
EDIT: Add "USA" at the end. A BGT convention, as not all of our members and writers are American.
<<I have been backpacking for four years mostly on long weekends in Southern
California with one or two week long trips per year in the Sierras.>>
Edit: one- or two-week [with hyphens]
<< The jacket has a lightweight, windproof and water-resistant shell with a high tear-strength and a Deluge® DWR (durable water repellent) finish. >>
Edit: I'd delete the parenthetical, as you define DWR earlier in the Review.
<<The shell and lining are 1.4-oz 20-denier 100% polyester ripstop with a Deluge® DWR (durable water repellent) finish. The insulation is 800-fill-power premium European goose down.>>
EDIT: This same information is in the preceding paragraph. Delete it in one place or the other.
<<3-day, 2 night trip to Big Pine Lakes area of the Sierras September 2011.>>
EDIT: Please add the temperatures encountered on this trip.
<<The nights were 32 degrees and the daytime temps were 55-65 degrees. >>
EDIT: Two BGT conventions: never use "degrees" when reporting temperatures, and Fahrenheit and Celsius are both required. 32 F (0 C); 55-65 F (13-18 C). Please fix all of the temperatures reported in your Review. By the way, there's a conversion table on BackpackGearTest.org, and at the bottom of that page are listed many of our conventions.
<< 2-day, 2 night trip to Joshua Tree December 2011.>>
EDIT: Joshua Tree, California [Once again, for the benefit of our non-US readers]
Edit: 2-night [with a hyphen]
<<Since it is only 11 oz and highly compressible, >>
EDIT: Please add the metric conversion
<< and did not add any discomfort to my pack.>>
EDIT: I'm not quite sure what you mean here. I do know that your pack is insensitive. Maybe "and did not cause me any discomfort from a bulge in my pack.
<<I was able to stuff it into my down sleeping bag compression sack that had a little extra room so I didn't have to allow space for the jacket in my pack.>>
EDIT: allow extra space [It was in your pack, so you did allow some space.]
<<I tried stuffing the jacket into the pocket and did not like the result. >>
EDIT: What didn't you like? Please explain here and later in this paragraph.