[Tamar]

Posted 26 February 2019 - 01:42 PM

This is a copy of an answer I gave in an other Slotracing & Tuning topic.
The question was what method slotters preferred to insert their lead wires into the guid: Eyelets or grubscrews?
 
With al the (endurance) testing for the DISCA LM 24hrs I have come to the following best procedure (I.m.o) a combination of both.
I prefer the bigger M 2,5 grub screws to secure the braids and leadwires, but will use brass eyelets to protect the lead wires from being cut.
For easy fitment I crimp the eyelets flat on the lead wires, it also keeps them from falling of while changing braids 

Pitcured below is a modified Scaleauto guide with self drilled and threaded holes for the M 2,5 grubs.
With the eyelets crimped you gain the rigidity of material for the grub screw to press on, but keep the full flexibility of the lead wire.
With tinned lead wire ends it is hard to control how far the tinn gets sucked into the lead wire, which can create a rigid and thus break point in the wire.
 
M2 grubs, specially those with a pointed tip are more likely to split, cut of even miss the lead wire all together during a quick pit stop than the broader (flat) tip of a M2,5 grub. But yes you do need to drill the hole and thread it carefully, but when done well no splitting of the guide... that is unless you over tighten the grubscrew.
 
 
With kind regards
Tamar