With LoF and CS both now good options to slot into magna if you have them it is important to know this:
Maximum of 2 CS is needed ever, 3 LoF is maximum for minmax but 2 is a good number. 1 of each is still good and usable.
The priority for the weapons goes LoF > CS > CS > LoF > LoF. Yes Percy as a character is most important for picking first.
The cap up from the 2 weapons are different and therefore work together. For example: 2 CS will give 14% cap up and 2 LoF will give 14% Spec cap up for a total of 28%