Hey Chris I'll give you some advise as I know the dams of these cattle pretty well having raised them both! First the Capiche has plenty of the Limi traits in terms of bone and frame. I'm also guessing she is pretty sound. If I had her I would breed her to a bull like Troubadour. If you want really good commercial stuff any number of angus bulls will give you very good calves. To show I'd stick with Troubadour.
The 50% simmental cow you have is actually out of a Nicole's Legacy dam (the sire of Dream On). If you ever want to sell her I'll buy her back! With that one you can successfully go with a simmy pure bred, other maternal, or clubby. We won Highland County last year with a Monopoly Money calf out of a cow that could be her twin (and with similar genetics). I'd say that combo could work for you too. If you want a high percent heifer then you have a number of good choices of simmental bulls. Breed her to any proven "power club cross bulls" if you want a steer to show. If you want a heifer go with a proven Simmental (Grizzly, Chopper, American Pride) or, for more Maine influence, a Mercedes Benz or I80 heifer or steer could have pretty good value. That cow can work several different ways.
By the way, what were her first two calves out of?
They look good - it's great to see them grown-up!