I have been doing a high volume routine recently to add mass and have been having great results. I am going to keep going for another 5-10 lbs but then want to start a slow cut so I can hopefully hold onto most if my gains. I assume that I should switch up my routine since I will not be putting on anymore mass while at a caloric deficit, would a 3x5 type setup with heavier weights be more optimal? How about trying to continue the time under tension approach?

This is the first time I have really done a true mass building approach so I was sure how different my lifting should be when I cut in order to try and keep most of my gains. Any thoughts?