I have been known to twist information or what is said to me, so I could twist what I read also, so screwed up area in my brain. So I went out and put a test to the old set of springer forks, from the fully extended position to the most I could get the come-along to compress the system, well the axle only moved 2" and maybe 2 1/4" if I had eaten my wheatie's this morning.
That 2" distance should be split, 1" for compression and 1" for extension, meaning the load on the trike/forks should make the rockers compress 1", noted as the loaded position.
So it does not sound like much, but even if it compressed 3", that is only 1 1/2" to either side of load position.
If I need more travel for compression than I will make that adjustment, a little extra does not hurt if one can do it.