Well, following the approach of the post "Tips for the first bowling (for sound technicians)", I think it's a good idea to make one equal but for backline technicians.
It is difficult to find articles or guides on how to act in each moment, if one half of the stage breaks something, the best way to tune, how to give and not give a guitar, etc. Both for large and small tours. For the moment I have not done a single backline technician (or backliner, or pipe ...) but some things I can contribute. To see if as in the other post among all we make a list and generous and place it as a fixed post.
Be careful with moisture. It is not the same to play in La Coruña at 3 in the morning as in Seville at 6 in the afternoon. If the case has been verified, the curvature of the mast through the soul (if someone wants to give advice on how to do this, welcome son!). You have to leave the guitar on the stage outside the base so that it does not have abrupt temperature or humidity changes.
Give the guitar to the musician always with both hands, when the sea between the song and the song, the lights are off and you can leave the guitar in its place and then give it to the new one. If it's a quick change then yes, with one hand the new one and with the other thing using
Know what tastes of monitoring has each musician to communicate them to the monitor technician.
Do not take an instrument until the musician asks for it (I mean the principle of knowing the musician, do not do anything until you do the instructions on how to do it all)
In guitar pedals always the Input is to the right from the view of the musician, and the output to the left.
In case the guitar's backup fails, for example, the first thing is to directly connect the guitar to the amplifier, if that works, at least the concert can be done, then look for the problem along the chain.
The wiring is better to leave the part under the foot of microphone that next to the hose, on the one hand to get the area of the hose more clear (less mess for all) and if you need to move the cake of micro will have more mobility.
https://www.hispasonic.com/foros/consejos-para-tecnicos-backline/204095