I know this sounds crazy, but the Hellraiser reacts like you would expect a strong pearl to react. Very clean through the fronts.
I threw a Nexus pearl, which I consider a strong pearl, vs the Hellraiser on my THS and overall they were within a board of each other for me. I had the Hellraiser with the pin under, the Nexus Pearl pin over, both 5.5 from PAP, MB 75 degrees.
If you are stuck on a pearl, go with the Nexus Pearl. Definitely very angular off the spot. But I also have the HR angular as well.
BP