If you haven't transplanted into your final pot size, I personally do a mix of 2 parts Ocean Forest to 1 part Happy Frog when I transplant into final pot size.
I've been using Happy Frog and Ocean Forest for quite awhile but If I'm ever able to get Pro-Mix locally or somehow aquire some, I would definitely give it a shot. If I like what it does, I would not be against switching completely.
Happy Frog and Ocean Forest at my local supply store is $20 a bag also but buy 4 get 1 free. The supply store is not a big chain store or anything like that, they sell not just everything for growing cannabis but also flowers, vegetables, etc. It's a supply/nursery/greenhouse.
This is what my Happy Frog looks like, this is 1 of the bags I just bought but it always is the same.
I don't think it's too mulchy IMO but I'll get a big piece of wood here and there but nowhere the amount shown in your original post picture.
You should see the sticks that I pulled out of the cheap stuff I got for our flowers and vegetables!
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