Gosh, it bothers me when people say to use an angus bull on simmental heifers "to guarantee a small first calf".
I have NEVER bought nor used a straw of Angus semen on my Simmi heifers, PERIOD! And I do not assist my heifers (we AI everything, no bull use here).
There are so many nice simmi heifer safe bulls out there, there is NO reason to use Angus unless you want a half blood.
Uno Mas, In Dew Time, Nightride, Yellowstone, Dream On, Goldmine, ...I could go on and on. My point is, there is no need to use Angus on a Simmental heifer UNLESS you want a half blood.
Off my soap box now...
BTW, we have been having great luck with Hooks Broadway on heifers (he is not proven yet, accuracies are low, but no problems here), and W/C Lockdown. We have had a few larger ones from One Eyed Jack (again, we did not touch her, but she was in the low 80's for birthweight, which is high on first calf heifers).We also used ACW Iron Hide on cows, and they have been coming small (most mid to low 70's, on cows!).
I like your heifer. We have one Integrate heifer, a May born calf. She was small, and grew slow, but is coming on now. I am starting to like her! She is out of a Club King x Ebony's Joy 5102R cow.