Not sure if this is the place for it but I picked up an old SPX8 esc, and am only wanting to use it in a VTA 2s application (it was in a job lot, it works, why not) but it had a schotty diode soldered on it, guy I got it from said it was like that but from what I understand on brushless, it's a bit of a no no (looked factory tho) I have taken it off for now, but does anyone know if they came with them stock, and why?