I have found that by simply rinsing my hands after all the prep work, including useing my Proraso pre-shave I don't have any trouble holding on to my str8 while shaving. A bit of water and some shaving soap on the hands does not seem to make me lose control of my shaving instrument. But yes, pre-shaving products DO cause a slippery situation whilst shaving.

Thank you for this thread, excellent stuff!!

tinkersd of SRP, again!!