Have you ever thought about the soil itself? It count a lot on nute choice...
If you have a good soil mix, with life on it, worm casting, any kind of organic matter, etc. biobizz outdoor trypack would be perfect! Fish mix, biobloom and biooehaven.
Never tried shogun, but I do believe they focus only in delivering the nutes, not focusing on life on soil. Biobizz has amino-acid for being a natural source of nutes.