Well i have never broke a tank yet,, maybe it is cos i take my time and sort it before i go onto track

This is what i have done with 100%

First i drilled out the hole's to about 4mm, then i put xray tank inserts in the hole's, i then used the same screws as in the kit with washers and the two o ring's as per kit, then i tighten it down till there was no movement on the screw up or down,,,, job done

I have tested this well and the only thing i have not done is ram it into the wall,,,,,

Id sooner take the time and make sure, even if it is after every bad landing just bring it in and check, this is what i have done with 100% success rate

Well worth doing