Additional spirit bonding gear

I have + 5 spirit bonding however the gear that I am spirit bonding has no discernable extra benefit. Of course this was over a sample size of 25 crafts each...small sample size but figure was worth noting. Maybe others noticed different? I guess only real way to tell is to do some ridiculous long craft sessions. Craft only the same item as a control and always craft items starting at zero percent.

Maybe it helps spirit bonding lower level gear?

Greetings SukoshiSeppen,

It seems that there have not been any further posts about this concern being an ongoing issue. Because of this, we are considering it to be resolved. If this does continue to be a concern, please create another thread using the bug reporting template found Here to further try to discuss resolutions or contact the Support Center at support.na.square-enix.com for assistance.

Regards,
Xetyline