Question about Camellya's rotation

I recently just got Shorekeeper and I put her on my Camellya-Sanhua team. So upon learning Sk's kit, I found that her ult upgrades per intro while it's active, and her special intro also means that you've achieved the last stage of her stellarealm and all the crit rate and damage buffs.

My rotation is Sk ult to outro, to Sanhua intro, skill, ult, echo then outro, to Camellya intro, spin, ult, spin until I get 10 pistils and then enhanced skill. After enhanced skill, I would want to special intro to Sk but realized I couldn't since apparently, Camellya's skill consumes concerto when used and I couldn't chase it back fast enough to special intro to Sk. Even at Sk S1, her ult doesn't last long enough for me to be able to chase it after Cam's skill.

So my question is am I doing the right rotation? Or should I special intro to Sk first before going back to Camellya and enhanced skill? I'm just thinking I'm losing on crit damage but I might also not be able to fill up Sk's concerto fast enough to go back to Camellya while also losing the basic attack damage buff from Sanhua.

I don't feel like switching to Verina since I'm already comfortable with my Jinhsi-Zhezhi-Verina team. Sk doesn't have coord, and with Zhezhi-Verina, my Jinhsi has full forte every single rotation.