msg73, The pistols I have my different comps on are so different in design (barrel length/holes/slide weight) I can't make an objective comparison, but I do have a full sized 2011 w/o holes I plan to use as a test mule for comparing the following: CFD, A Zone, Thundercomp II, McLearn, Cheely and hopefully Eric's as well. I must say though, my gun with the CFD comp has two holes, and I use 9.4gr of SP2 under 115s so I have a completely different experience of it. I'm my opinion you're not giving it a fair chance with that load; with no holes in the barrel you should be able to make major using a 115 and a slow powder like 3n38 or even N105. I would not go faster than HS6 with that setup.