I use an identical system except I'm in potted rockwool cubes and chunks. As far as lazy, I have not lifted water in years. 100% of everything pumped in and pumped out. I designed and printed mods for my little 160gph pumps to convert them into sump pumps. Now when I empty a res, I can hear the pump snorting to few drops that got left behind. All other submersibles will leave inches of water in the sump, my pumps suck out every damn drop almost. My RO is supplied by a direct feed, and I also stabbed my waste line into the house so all water in and out of the grow is plumbed and the pumps do all of the heavy lifting.
I crunched the numbers for all of Megacrop's 3 formulations and I like the Vegan blend the most. My mid bloom shown is what I used a few months back, but have since changed a few things including adding ammoniacal N, but my blend is about even with the Vegan blend now except my micros are much different. Here's my notes about regimens I mapped so far. It's good for reference. FWIW, I used GH Flora series for years, but switched to salts when KoolBloom, Nectar and one other bottle, the nutes turned bad inside and grew mold. If you stick inside the 3 part you should be ok if you don't mind buying water, but the amendments aren't preserved correctly and can turn bad unless kept in perfect conditions.
Note Megacrop(O)=Old, N=New