Just wondering if anyone has experience with a dud boob and BF twins. With DD, my left side would yield 5 oz and my right only 1 oz. nothing I tried evened it out, if my supply went up it went up in about the same ratio. I was hoping to tandem BF but would this make it impossible if it happens again?

BFP#1: 11/20/11, EDD 7/25/12, Emily Iris arrived 7/29/12 at 7 lb., 3.5 oz.
BFP#2: 8/25/13, EDD 5/4/14, MMC confirmed on 9/23/13, D&C on 9/26/13
BFP#3: 2/3/14, EDD 10/15/14, fraternal TWINS confirmed 2/21/14, two BOYS confirmed on 4/15/14!
Re: Dud boob?
#1 BFP 1/10/11; missed m/c discovered 7w5d
IF Dx: Endo, hetero MTHFR mutation, poor morphology
#1 IUI: 1/18/12 = BFN
#1 IVF/ICSI 4/2/12 = 2 x 7-cell and 1 x 5-cell transferred (3dt) = BFP!!
H was born at 41w2d on 12/29/12 - be still my heart!
#2 IVF/ICSI 1/19/14 = 2 x 8 cells transferred (3dt) = BFP!! EDD 10/09/14
M&W born at 37 weeks on 9/18/14 - I am the momma of 3 boys!!!
Also know that pumping output isn't indicative of what a baby is actually getting, either. One boob may respond to the pump better than the other.
It is common to have one boob that produces more than the other. W my singleton, I had an obvious overproducer. W the twins I don't really. I have a more problematic boob - it gets clogged ducts all the time (so annoying) - and one that lets down faster than the other, but they've remained relatively. even producers.
I had a hard time actually getting baby to breast due to a nipple shield/baby freak out combo so I pumped for about 6 weeks. My right boob was pretty good. My left not so much. I tried NA beer, oatmeal, mother's milk tea, all without too much success in increasing my milk.
BFP#1: 11/20/11, EDD 7/25/12, Emily Iris arrived 7/29/12 at 7 lb., 3.5 oz.
BFP#2: 8/25/13, EDD 5/4/14, MMC confirmed on 9/23/13, D&C on 9/26/13
BFP#3: 2/3/14, EDD 10/15/14, fraternal TWINS confirmed 2/21/14, two BOYS confirmed on 4/15/14!
This time I'm definitely having more right sided discomfort (I've been working at using them equally).
I wouldn't assume you can't tandem feed- you may just need to be more careful about switching sides often.