Perfect, you were very clear, thank you very much.
Later I could also take a different handle, they recommended the blue P9 to me, the grip is closer to the tip, the 907 handle seems wider but it has a metal ring to block the tip, perhaps it is more resistant, in the end the important factor is compatibility, at the beginning I thought they were all the same instead the quicko has the 5-pin connector, among other things there is not even a compatibility of handles between the KSGER and the Quicko.
Of course with all these versions of KSGER 942/951/952/956/958 you have to be careful about the compatibility of the handles.
I looked at the various handles of the Quicko 958 to realize the differences.