Since you insist on being so stubborn and wanna take the risk...


Inner Quiet, Stead Hands, Hasty Touch(Tricks of Trade for every good proc), Master's mend II at 20/80, Hasty Touch Spam(obviously use Steady Hand again when you don't have it up), get it to 30/80. Rumination, Ingenuity, 2x Standard Synth, Careful synth. You might be able to do Standard Synth + Careful Synthx2 but I'm not too sure(I know you can do it with Careful Synth IIx2). Or, if you get a lot of ToT proc's and have a ton of cp left over before you use rumination (at 40/80), use Great Strides>Advanced Touch for a big chunk of quality.)

I highly do not recommend doing this without Stead Hands II. Byregot makes it so much easier but since you don't wanna get stuff to 50...(hell I got my Carp to 50 in 4 days...I used up all my leves and had to wait). The extra 10% is huge. What do you mean you don't wanna 100% chance HQ 2-star every time? You are out of your mind. If it's not 100%, I always feel a bit nervous for that random chance it becomes NQ. If you wanna craft the hardest items to craft in this game put time and effort in it. Imagine how much time you're gonna waste by farming for the mats again...could've just gotten CUL to 37.

You haven't even put any materia in your gear yet (forbidden melds can be a nightmare)...worry about that first. You say with all HQ materials...I don't know how you're gonna HQ a 40 dura Hard Hippogryph Leather without Byregot. Possible? Yes. Likely? No.

People have been giving you great advice yet you just ignore them. Your stubborness is gonna cost you a crapton of money and you'll regret not listening.