RNG on Rapid Synth is streaky. Sometimes I'll get several failures in a row. Sometimes I'll get several successes. If you only use it infrequently, then it's going to seem like it always fails.

Since it makes no sense to use Rapid Synthesis on anything except the Expert recipes, it's not going to be an issue for 95% of crafters.

If you're tackling Expert, then you know how to reduce the RNG. If you don't know how to reduce the RNG, learn to understand your conditions better.

Quote Originally Posted by GTK0HLK View Post
We really don't need back in forths here, and in other topics.

It has its uses.., does it need to be as the OP wants not exactly.., will it drain resources from other things.., not as much as many would exaggerate..,,
Does it need some changes to take into account..,
Yes..,
Like taking into account "Trained Eye" if the level difference is there.

It has uses, so it exists. Personal amount of uses aside. Does it merit OPs desired changes..,

Simple Yes or no, with minor detail.<no back and forth about it>
No, because the average failure rate is not what the OP claims.