Can I verify everything you've presented in this thread in Wasabi client? I'm curious. For example, I had used Wasabi when reviewing it, and I don't remember it allowed me to choose my own round.
Choosing the round isn't manual when there's multiple, it's done automatically based on the round parameters. If a coordinator is running many rounds in parallel with low minimum input counts/fast input registration timeouts, you should already be avoiding them altogether since their parameters aren't making good use of scarce block space.