Thank you for sharing ur experiences or bad enconters however
There are 2 types of socket.
Those sockets with round holes are the
onces easy to loose contact (IC pins are flat, so will not have good grip/mating in round hole)
The type I am using so far do not cause
trouble... None of the ecus chipped ever came back for "poor" contact issues..
Those sockets with round contact holes, yes I hv seen and repaired those contact problems,
even on ECU with hondata s300 boards.
Anyway below are some pictures and also 1 of the socket pin removed and inserted to an IC
to show the contact.. (when the terninal is in the plastic housing, the "spring" effect is even stronger.
Anyway if DIY, you can decide which way you want to do it... socket or non socket..