Calculating capacitance on breadboard vs PCB tracks
so then I don't have to waste solder, or PCB material over failed attempts, and yes I removed and re-soldered components in the past which can be a pain



Solder is cheap.
Design your PCB using larger parts than are strictly necessary. 0805 parts are much easier to rework than 0402.
Design your footprints with slightly more fillet area than the minimum. If the pad extends a bit beyond the end of the part, it will be much easier to rework.
Design your PCB with extra part locations for trimming. This lets you adjust effective part values in smaller steps than the standard values allow.


Now you don't need to muck around with crummy breadboards.