Originally posted by Malves
EDIT: Just to add. It's a good idea to ground the trimmer somewhere. Using the 3rd leg of it. It helps stabilize voltage.
i hope this helps coz that's other thing i noticed.... at same 3.3v rail and same vdimm - vdimm fluctuates a bit... that wasn't the case before the mod. i guess i need to ground this trimmer now...

thanx