Kalshi - 'Win-rate' vs. Expected Value when pricing contracts?

Been dabbling with Kalshi a bit and I'm trying to get my head around how the pros are thinking about these contracts. I get that if a contract settles at $1, and I buy it at $0.40, I'm making money if I'm right. But how do you guys balance a high 'win-rate' strategy (say, buying lots of contracts that look like 70%+ probabilities but only offer a small return) against a lower win-rate but higher payout opportunity? Is it just pure expected value modeling on an aggregate, or do you factor in variance/drawdown risk differently given the binary nature of these payouts? Basically, I'm trying to figure out if there's a consensus on focusing on perceived high-probability, low-return trades vs. the riskier, higher-payout ones for portfolio construction on Kalshi. What's the general approach you've found most effective?