I found a stash of older gillette razors a few days ago in a junk store for 20 and some change. Not having any pre me razors, I decided to take them home. After cleanning and some soaking, they still look old but seem to be mechanicaly sound no bent caps or doors so I will try them one at a time until I get through all of them. One of them is a adjusable slim date code J4, not quite pre me but close enough. I had a persona blade that needed used so instead of a feather I decieded to use it up. Not being affraid any more of new tools I set it on 9 and set to work. The first stroke was an adjustment run for me. It was very easy to find this razors' sweet spot, half way through the first stroke I nailed it. A nice clean stroke with no miss or stragglers left behind. I continued with the right side and my poor memory brought me back to (don't hate me) my parker 99. I like the parker but like most tto's it has its quarks. I find that blades in tto's have a weird blade feel almost like the blade can start vibrating or somthing I can't describe very well. I don't think it's a bad thing just something they all seem to do and the slim is no different. Back to the slim, my parker always gives me a fine shave and the slim is no different. This razor is old but seems to hold its own even at over 50 years old. The rest of the deed went as expected, like an old friend you haven't seen for years. No learning curve at all on this razor. Nice clean, smooth and pleasent like I've used it for ages. Hope the others shave as well as this one has.