I've hunted with 32" barrels too, but that's not what everybody wants. When you see a rifle called a mountain rifle. It has a shorter barrel.
Back in the 80's hunters were fed up with long barreled muzzleloaders. They went to Tony Knight, and asked for a short barreled ML. The inline was born.
Long barrels do burn the powder better, but that's for real BP and some of the subs. Certainly not BH 209. It burns fine in shorter barrels.
I'm going to try long range ML hunting next year for something new to try. I don't feel a need to use a longer barrel than 27".
How long is the Knight LRH barrel?