Well, I'm not very experienced and there are lots of people here more qualified than me on this topic, but here are my two cents.
I built four LMSU in sealed. They are mega stellar down low, but in the midbass they just don't cut it if you're after massive chest pounding action. They will pound you, no doubt, but not to the same level some pro midbass drivers will.
Expanded on the quad LMSU with four sealed midbass modules with JBL 2226. They will pound you red, purple and blue. The tactile feel of the punch is around 75 Hz for me personally (depends on your anatomy), but the sound of the punch is higher. If you have the punch without the audible part of it, it won't be perceived as snappy. The sound of the punch is far higher than the actual physical midbass punch. I've tried slowly lowpassing until the audible part of the punch disappear, and found that a lot of the info is upwards to 400 Hz, and even above that, especially with kickdrums.
First priority is to make sure you don't have a large suckout within the 60-200 hz region. That's a very important region for most of the punch. 40 Hz is approx where you get pounded in the stomach, btw.
Another thing I've found is that if I run the sub bass hotter (40 Hz down) all things equal, the lesser the midbass impact will be. I've thought a lot about why adding gain to the sub bass will affect lessen the midbass punch and tactile feel and come to a hypothesis I'm not able to prove or disprove due to lack of knowledge. The hypothesis is that as the sub bass becomes relatively louder the sound of the punch is less perceptible, and secondly, that the sub bass moves the air particles such that the transfer of the tactile mid bass can't penetrate through.
So if your frequency response doesn't have large suckouts in the midbass region it's a game of balance between three things. Sub bass, midbass and the audible range of the punch which lies far higher.
Again, these are just my experiences this far and don't know if they're worth the storage space it occupies on AVS' servers.