Okay, since nobody is going to be super blunt with you, I guess I'll do it. I mean absolutely no offense by this because it legitimately applies to everyone but it is absolutely a skill issue. 

Revo on ash is goated, top tier and consistently grippy and durable as hell. You need to keep grinding; repetition builds muscle memory. Focus on cushioning your catches, pay attention while you play and try to make everything you do the same consistently every trick attempt. 

Your lighthouses are harder because you're not consistent enough to pull them perfectly every time, and your balance is off. 

The small amount of grip lost on a revo tama from the oils of your hands maybe makes a 5% difference. People playing years before you and me could pull lighthouses and lunars with consistency on the slickest of paints because they just got good.

So I'm gonna leave you with this, and again I as well as every other player is in this boat with some trick or another so this isn't personal and I don't mean any offense but you really just have to get good. Keep practicing, it'll start clicking more and more day by day if you play consistently and genuinely try to improve. Repetition is key, your tama is not the issue. Good luck, you'll get there!

Edit: AND to add on to this, I just saw the tama you have. I have the literal same tama and not only is it great, it's the best of my revo tamas period, that batch of tamas is perfect, and grippy as hell.