Every time I do lateral dumbell raises, the next day I feel really sore and tender...but not in my shoulders!!! I only feel it in my lats. I am sure my form is Ok,so any suggestions???
You're definately reaching back or your arms are too straight. Keep a 15 to 30 degree bend in your elbow, so that your hands are slightly in front of your body at the top of the contraction and also shrug a bit at the top. that should do it.
Whatever you think .... your form is somehow stretching your lats ....
if ever your form is indeed correct .... I suspect that you are moving too fast. If your raises are very slow ... it should burn your delts ... not your lats.