This afternoon we performed a measurement of the current input beam mode mismatch toward the arms. 
Following the usual procedure of the kick of the end mirrors and using the matlab code detailed in #68646

An additional idea was to do a measurement with CH ON and OFF to see if there is any difference the difference. 

First measurement : 13:29:13 UTC CH switch off. 
Unfortunately injection unlocked when we put the ITF in down. 
Analyze could start only at 13:31:00 UTC 

Measured mismatch  for WA : 2.5 %

The data from NA where not usable, there was quite a lot of misalignment.
We realized that it was most probably due to the work done yesterday evening.  
Paolo brought back North arm to its nominal condition. 

Second meausrement : Carm_null lasted only 6 min. 

Third measurement : CH ON, ITF unlocked after 18 min of carm null but we managed to do the kicks anyway. 
Analyze started at 14:57:10 UTC over 200 s

Measured mismatch WA : 1.9 % not that clean.... maybe due to some misalignment when ITF got unlocked.
Measured mismatch NA : 2.8 %

Fourth measurement : CH ON, best measurement so far (figures) 
Analyze starts at 15:45:30 UTC over 200 s

Measured mismatch WA : 2.1 %
Measured mismatch NA : 2.8 % 

Giving the relatively low mismatch and the work to come on TCS we decided not to tune it. 

At the end of the shift (17:55 UTC), Manuel brought the NA back to the alignment found yesterday evening.