D'Addario also do a 170, which I would much prefer to drop on a 34" scale to get some tension back - or, as I had to do before anyone in the UK was making a 170, (well over ten years ago now) Newtone Strings custom made me a 145 with a custom core to get the tension up.
Thank you for the tags, I am not sure why I didn't get a notification. Drop tuning this low on a standard scale length on a bass that isn't really up to it, can be problematic at best and a PITA at worse. I watched one of my students do all manner of upgrades to his Ibanez bass and was still rewarded with being left wanting. My Shuker basses on the other hand help to focus on the frequencies that matter should I need to drop low. (My 7 sting is an F#'er and is currently dressed with a 190 gauge string that will give me enough to go down to E0.)
It's like having a bass with a great sounding B string. Some, no matter what you try, just won't "do" a good B. I have a £200 5 string here that has a wicked sounding B string!
The statement "why would you do this, you can't hear it" I feel is based around experiences failing to get the tuning to work or a misunderstanding of how it works in reality. Yes, everyone chimes in and says that the fundamental frequency of that F# is 23.12hz - and 90% of bass speaker cabinets on the market cant deal with that fundamental and plenty of amplifiers are HPF'd long before this anyway. BUT!!! - It isn't the fundamental you're needing to focus your attention on, it's the harmonics of the note, 46hz, 92hz, 184hz etc.
Anyone who has heard isolated (mixed) stems on a recording will know that generally speaking, the lows that deep have been carved away anyway. It still sounds deep and brutal though. Your ear fills in the rest. ...and you definitely don't wanna be driving those kinda frequencies hard on stage with your own personal sub either. FOH engineers will not love you!