Congratulations on your purchase. Pittsburgh Kilts are great.

I have a flannel-lined denim, and that's the warmest kilt I have (warmer even than my wool kilt). Maybe you'll decide it's NOT really "too much" at your first really cold game.

Until then, you'll have to cheat. Boxer briefs do a pretty good job of keeping you warm where you need to be. Other guys swear by tights (but I don't -- they just look goofy to me). Taller boots and taller socks should help, too.