Do serious poker players actually use sports betting to diversify their bankroll?

Genuinely curious about this because I've seen it go both ways.

Some of the sharpest poker players I know treat sports betting as a natural extension of the same skillset: bankroll management, edge identification, variance tolerance. Others won't touch it, either because they see it as a different game entirely or because they got burned early chasing bad lines.

For those who do cross over, a few things I've been wondering about:

How do you size your sports betting allocation?
Do you treat it as a separate bankroll with its own Kelly-style staking, or do you just pull from your poker roll when something looks good? I've seen people run it as 10-15% of total bankroll, others go full parallel operation. No obvious consensus from what I can tell.

Do you use any tracking tools?
In poker we're obsessed with solvers and tracking software. But in sports betting most people I know either use a spreadsheet or nothing at all. A few platforms have started offering serious analytics, closing line value tracking against sharp books like Pinnacle, historical edge analysis... essentially the sports betting equivalent of a HUD. Curious if anyone here has gone down that rabbit hole or found something that actually holds up.

Do you follow tipsters, and if so how do you vet them?
This is where I think poker players have a natural advantage: we know how to read a sample size. A tipster showing 8% ROI over 300 bets is almost statistically meaningless. But if someone is consistently beating Pinnacle's closing line over 1,500+ bets across multiple markets, that's a different conversation. Are any of you actually applying that kind of filter, or is the tipster space still too noisy to bother with?

Or do you just fade the recreational money and do it yourself?
Some poker players I know treat sports betting as a pure DIY operation: line shop, track everything against the close, never follow anyone. Which makes sense if you have the time and the market knowledge. But it's a significant research overhead on top of an already demanding poker schedule.

Would be interested to hear from anyone who's actually built a system around this, whether solo or using external tools/tipsters. The overlap between sharp poker thinking and sharp sports betting seems underexplored as a topic on here.