Dose 1 (first thing upon waking on an empty stomach) - 2 caps Alpha-T2
Dose 2 (6-8 hours post-Dose 1) - 1 cap Alpha-T2 + 1 cap SHIFT
Dose 3 (15-60 minutes pre-bed) – 1-2 caps SHIFT (with or without food)
If you're only going to use Shift, dose (all doses can be taken with or without food):
Dose 1 (first thing upon waking) - 1-2 caps SHIFT
Dose 2 (6-8 hours post-Dose 1) - 1 cap SHIFT
Dose 3 (15-60 minutes pre-bed) - 1-2 caps SHIFT
You cannot compare a natural AI with a hormonal AI. As far as strength, Erase can help with it, yes, but whether or not you gain strength is going to depend primarily on your nutrition and training (and fat loss or not, your strength does NOT have to decline and can even improve).
Low estrogen does not cause acne - acne is more based on testosterone levels than estrogen levels, and an increase in testosterone can cause an increase in acne in some individuals, although not everyone is going to experience this.
You can use Erase during or after your usage of Ostarine. If you use it during, stick to using one cap daily, no more than two caps - current Ostarine/erase log. If you use it after as a standalone, use the recommended dosage of 2-4 caps a day. Josh can comment more here.