The answer to this question is yes. I have been in touch with Logan (runs/owns Enhanced Precision Products and Fowler Industries) recently via both email and telephone, and while he is currently focusing on his custom like of Glock pistols, he is more than happy to continue to service the HKPRO community with his excellent custom stippling on all H&K polymer framed firearms. He is still offering the ENT texture and the Carry texture (my favorite) and I would imagine he would also offer the Medium and Aggressive textures as well if so asked.
I just sent him a big box with the rest of my H&K USP frames for 360 stippling in the "carry" texture.
Please do feel welcome and encouraged to contact him via email or telephone as listed through the FI Guns website as shown above. He does spectacular work!!