Sorry for the late reply I've been a bit busy .
Yes I can make you polls for thumb screw if you want but I may have a lot of things to do as well
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Anyway I've been working on the chassis weight lately ...
Many ideas crossed my mind and I came up with this this week end :
A weight to be put between the batteries . (two holes were already there from stock):
This is the CAD I did for me to not forget measures while machining it ...
with these dimensions (in mm) it went straight in . But some of them can still be optimised :
I've made it this morning in brass . The CAD programs estimated its weight at 130 grams , when I've put it on a precision scale it was 126grams . (plus the 30grams from the battery poles in brass it makes the perfect weight to match the Ni-mh weight with my lipos)
To assemble the weight to the chassis you have to remove the top plate , the shaft , and the middle spacer (plastic H shape ).
fitted nicely the shaft doesn't touch anything
(the silver mark was done earlier when I first assembled the car a few weeks ago) .
Last shot showing how it seats and clear eveything :
I'll test her tonight and see how it goes
thanks
@ace028
You may want to change the thumb screws as well to something more beefy ? like M5 M6 ?