I found the Tech head has the aggression in am looking for. I have an extremely heavy beard so I will get “5 oclock” shadow about mid-afternoon unless I use a straight or an “aggressive” DE. This produces an “all day” shave with Feather blades.
I bought the head since I had previously bought the handle to pair with an R41 which comes with a very light handle. I reunited the iKon and Muhle handles with their heads. I prefer the iKon.
Highly recommended for heavy, course beards and experienced technique.