If you feel like learning more about dihedral- try this -as another experiment.
buil a low wing plane with an aspect ratio of under 3-1-with no effective dihedral
the make another wing which will fit the fuselage with an aspect ratio of 7-1
keep wing areas about the same
Finally make a wing with an aspect ratio of 1-1
You will find that the need for dihedral decreases as the aspect ratio decreases -
Long ago - I built a Jensen Ugly Stick for Dave Brown- a rush job - I started the kit at 8:00
in th morning and gave him the plane in that afternoon about 3:00.
Those were beautiful kits -everything fit.
I can't recall if that kit had dihedral -Ithink it did
that was in about 1975
We had a Fun Fly the next day and I had a 15 size World Engines Expert stick -built upside down with dihedral
Dave had the Ugly Stick- We were 1&2 in all the events.
I won all the events expect the spin down -which was counted in number of turns - so Dave won the event
Grrr
The Stick design (Phil Kraft gets credit) is still an excellent model -there have been at least 100 versions of it -some good some awful.
The one shown in the photo is good one.