I noticed that Patient touch has a huge failure chance when using it, even with steady hands 2, so I decided to test it
So here's the set up. Level 70 armorer with 4/5 HQ Onishi. Crafting Titanium Sollerets of fending (Ilevel 133 level 55 craft). I chose it because it's no where near difficult to affect success rate and I had tons of mats for it.
On the first craft, using Steady hands 2 and patient touch I failed 3 out of 4 times using it. I repeated this, crafting 45 sollerets. The results were interesting.
Of the 120 times I used Patient touch (always having steady hands 2 up) I failed 64 times. That's almost a 45% success rate. Steady hands 2 gives a 30% increase to success and patient touch has a 50% success rate. So a total of 80% chance of success right?
I would like to chock this up to RNG and low sample rate but I'm not so sure about that.
The problem I have with the low sample rate claim is that no one can have a large enough sample size to be reliable. You would have to craft hundreds of thousands of items to have a sample size that couldn't be called "Too small". If that is the case then the listed success rates aren't what you can expect as an individual crafter even through years of playing. So the success rate should be considered 50% unless you can achieve a 100% chance of success. You either fail or succeed unless you eliminate the chance of failure. But that's not the point of this so back to the issue at hand.
I plan on doing more testing and increasing the sample size to 1000 uses and see if that affects the numbers but I would like to hear from other crafters and see if they have similar results.