I have a 10x16 shed that use for a woodshop and am planning to remodel it soon. I currently store some lumber in the roof trusses and would like to make it a little easier to do that in the future by removing one of the ceiling joists.
Currently it is setup something like this:

But I would like to open up the center a bit which would make it easier for me to move things into and out of the ceiling. I have come up with this:

So my plan is to add OSB gussets to each truss, replace the current 2x4 ceiling rafters with 2x6s, and double them up on the two inner/outer rafters to support the 2x6 box I build in the center. I think this will hold up but I'm not a structural engineer so I'm not sure if there is some issue with this I don't know about.
I would prefer not to add webbing because the plan is to maximize the amount of storage space I can get up there.