So cut the pins and secure the two track ends together?
No, if you must cut to fit; choose to cut the non-pin end first. Then you don't have to play around with the pin side.
Pins doBdo makeemake it easierieasier you had no pins, screws can be made to hold them in alignment. ≤ Real nice "spellwreck" program google has, eh?
Pins do make it easier, but screws are enough to hold an alignment.
There is a table of "FT combos to = (?) X inch " floating around here in some older SCARM posts. Might be worth a hunt.