Tips for abs? I'll trade you for tips on vascularity. Keep reps higher 15-20 range and fewer sets. Doing heavy weight with abs can kill the taper if obliques grow too much. Focus a lot of breathing technique during your workouts to indirectly train abdominal control. Slower tempo. But a lot of abs come from diet, remember visceral adipose tissue is part of the endocrine system. Cut back on sweeteners and keep cortisol in check from day to day stress. Sleep does play a role there, too.