As you are aware the holes have been precasted why they did not do them only tamiya can answer this ?
your correct they will be okay my issue i had was alignment .
going thru the test it runs as they should be smooth and quiet .
the free spinning and floating centre track
guide not being fixed was the solution for me i will fix sprockets mill out the stock sprockets easy they are marked .
Fit and mount laser how much £4 or €10
manage to show a few tank guys yesterday how fast did the note books and pen come out sure no problem just a sec need to make a phone call lol funny gentleman .
he is not on the tank handy again 😂😂
make me laugh jaurndice good to hear from you get handy call from tamiya development team .