Outer rocker replacement help

[ryans69chevy]

I aligned my door and took measurements from the bottom of the door to a point on the cab. Took my door off and fit the rocker in. My cab corner is already in since I matched it to the body line of the door. The cab corner sits about 1/8"-1/4" lower than the rocker. When I measure from the rocker to the line I drew on the cab from where my door bottom is, its the same measurement - in order to get a gap under the door and for it to line up with my cab corner I need the rocker to go down 1/4". The lip of the inner rocker won't let the outer rocker move down anymore. Not sure if that makes any sense.

I bought all these parts the same time as I bought my floor (2018 I believe).

Once I get my rocker lined up where I think it needs to go I'll screw it in and then hang my door again to verfiy. I dont have door seals yet. Is that necessary to have before I weld it on in? Ive heard Honda seals work perfect. What's everyone using?

I can post more pics for anyone if need be. Appreciate all the help so far.