How do you all find & keep your best washers?

Hey all. I’m in the midst of my second year washing & pressing my outdoor harvest. I’m learning the hard way that not everything washes well. I knew some cultivars did better than others, but it took until I washed my Grape Diamonds x Grandpa’s Cookies to realize how insanely small of a return some plants can put out. To the point where I’m not sure what I’m supposed to do with all this fresh frozen that won’t wash lol. These past years I’ve been growing from seed & I guess I’ve been pretty lucky with returns! This upcoming season the goal is to clone everything & keep clones in veg until I start seeing some wash results in hopes I find a unicorn to keep taking clones from or reverse & make some seeds from. Is this the way to go? Do I need to get better at identifying trichome structures? Is it loose bud structure or weak neck trichs, or both, that make the difference? Do I just run a GMO or Wedding Cake & go from there?

I’ve been liking Ethos’ Early girls (all grandpa’s cookies crosses) I still have yet to start washing a couple strains I ran but I was really impressed with how fast they finished outdoors (I have a short season)

Any advice is appreciated.