I have the 9" - not the 8" and have done a review.
It's the hardest silicone formulation of any toy that we've tried. Since Vixskin is our favorite - this hard formulation was a disappointment.
I was looking for length to make pegging easier - but there is no way I can take anything that hard - and that large.
My wife can use it vaginally - but it just doesn't feel as nice as her Maverick or Johnny soft silicone dildos.
Since your idea is also for pegging - I'd advise against it.