Regarding blades, I find myself using a Kai in my Techs more than anything else.I used a Gillette Nacet. Had one shave in it when I switched it to the new razor.
My handle is a Maggard bulldog. Don't know model #. It is smaller than the Razorock bulldog.
Also enjoy Personna Med Prep, Feather, Personna Israeli Platinum Red and Bolzano blades in Techs.
The 'To Try' list includes Nacet, Rapira Swedish Steel and a couple of others that are slipping my mind at the moment. Given your feedback on the Nacet, that looks like the On Deck blade to me.