My DH's quality was good after abstaining for 5 days so I guess for some men its different .
I also have him taking alot of antioxidants.
some studys suggest X sperm are at the highest count 7 days after abstaining and the X sperm are stronger and can survive more hostile conditions then y sperm. so to raise our chances were abstaining 5-7 days before ovulation. I could care less if its another girl I just want a BFP.
btw I got most of my sperm info from ingender because we were swaying for a boy but not anymore.
she has alot of studys on that site as well to back up the information.
If there is a morphology issue I agree that abstaining no more then 2-3 days at most is best.