Rushing Manamune/Muramana on ADC?

So, the new season jas been pretty kind to Senna IMO. DFT applying cleaver stacks alone has been amazing for me.

As predicted, Shiv feels pretty good on Senna, but I can't help but notice that some of the tradeoffs feel less than ideal.

Most notably, going from three charges to one really hurts the waveclear. I'm also just not noticing an increase in souls. Roughly 20 games played with new shiv.

What has been helping me get souls is first reset tear and then Q poke Approach Velocity. Also being able to Q the wave is nice to sustain through mid-game poke and is equally strong waveclear assistance to current shiv, at least by my perception

If I need more soul stacking and wavelcear, I think I'd sooner go Runaan's.

I am also just noticing a safer/stronger laning phase because I can use my Q almost indiscriminantly once I grab tear.

Has anybody else tested a Manamune/Muramana rush?