Putting guys in half-guard is my bread & butter passing game. I prefer to flatten them out in HG and work different passes from there. However, I also have a few other standing passes that I like to use in case I can't get them there.
Bottom HG is also my bread & butter. I'd rather be there than most any other guard as it just seems to work well for my body type and I can force a lot of sweeps and even submit guys from time to time. I developed my bottom HG first and I think that helped me become proficient at working/passing from top HG.
So to OP, if this is working for you, then yes it's a viable strategy. I'm finally starting to realize that not everything works for everyone in jiu jitsu and that we all have certain things that we are naturally better at than others and I think it's important to find these things for each individual practitioner.