I am thinking about a Montrose doublet. How far down should the jacket fall? I have seen measurements for a 'long' where the bottom of the jacket is 28". That is where the tail of my PC would fall. A PC falls fairly short comparatively just covering the 'waist' of the kilt and just covering the shirt. Correct?

Since the Montrose is 'belted' would it fall longer so that the belt loops and belt would be that low. My normal sports and suit jackets are longs and are in the 33-34 inch range.

How long should a 'long' Montrose be? My PC is about 22 to cover.

Any tailors out there? Thanks in advance?