I have 2 of these: (one is actually an older model with a smaller 3/4 hp motor)
Emglo 4gal.jpg
And 1 of these:
Hundai portable.jpg

If I were to feed both compressors into the portable tank and then draw off of that, would that be a little like having a larger compressor, specifically for spraying?

Or would I just have a bit more capacity without any greater ability to 'keep up' with the draw?

It's just a thought that popped into my head today. I'm trying to make do with what I have.