Use room temperature cream cheese and eggs for smooth filling. Do not overbeat after adding eggs to avoid cracks. Press crust firmly to prevent crumbling. Use fresh berries or thaw and drain frozen berries well to avoid sogginess. Chill bars overnight for best slicing and texture. Dip knife in hot water and wipe between cuts for clean slices. Cinnamon in crust adds warm depth but is optional. For gluten-free crust, substitute graham crackers with almond flour and coconut sugar. Vegan adaptations include vegan cream cheese, sour cream alternatives, flax eggs, and dairy-free butter or coconut oil.