7.5ml on current stack but want even more

I’ve been taking the following stack for a few months consistently and have seen good results, and I regularly measure 7.5ml in solo sessions

• Lecithin 2400mg

• Zinc 30mg

•Vitamin D & K2

• 2-3 Brazil nuts for selenium

• CoQ10 200mg

I’ve also been taking Ashwagandha and Damiana daily and have noticed my balls feel fuller and look bigger.

Lifestyle factors are dialled in. I’m marathon training so diet, exercise and hydration are prioritised.

What advice can you give me about taking my loads to the next level? Should I double the lecithin to 4800mg?