I maxed synthweaving, and will probably not attempt to RE anything until some changes are made. I have RE'd approximately 300 blues (150 of one chest, and 150 of one legs), in an attempt to get 1 single purple, not even the purple I want, and have not gotten a purple to pop for RE. I have heard people that have attempted this with even more blues, and get 1 purple, then the next two learned schemetics, "You already know this schematic".
This is why I will not work on Synthweaving, with it's myriad of patterns, until changes are made to the existing system.