Wind transducer through iTC-5

[TKP62]

My current system is as follows:
ST60 Wind + Speed + Depth + Repeater + Wireless remote on ST1;
ST1 into ST-STNG converter;
Evolution autopilot and e125 on NG side, with ACU400 powering the NG circuit. Everything works fine.

I just bought two i70s units + an i60 Wind display to replace the ST60s. I also bought an iTC-5 to consolidate the transducer cables below deck near the ACU400, so everything heads up to the deck via one NG backbone. I am keeping the ST60 repeater and remote (which are both mounted below deck at the nav station) through the converter for now.

I was under the impression that running the wind transducer into the iTC-5 would put the wind info on the NG network, but upon receiving the i60 I see that it still has provision for the wind transducer on it. Can I run the transducer through the iTC-5 or do I need to maintain the transducer connection directly to the i60? If running through the iTC-5 and backbone to the i60 & i70s's, does the wind data have any lag to it, in other words is it better to keep the direct connection of the transducer to the i60 as opposed feeding the i60 with NG only?

Thanks
Tim