Mostly not good info.
A 432 is simply tuning your instrument a tiny bit lower than current standard. It's 8 cycles per second slower (lower) at your A, which is nowhere near 32 cents. You might want to tune you uke low to sound good with another instrument that has gone flat, or if you think it makes your ukulele sound better to your ear. But if you play alone, it really makes little to no difference. If you play in a group, don't do it. In addition, it has nothing to do with the temperment, which is built into the instrument. You can't tune a fretted instrument to any temperment other than the equal temperment (which will still no be quite perfect). If all you the play is ukulele or guitar, there's no need to study various tunings.
Yes, I'm a little touchy about false tuning info.