New Rocnel SE-G Gem style razor.

Glad to hear that there's someone else who needs a bit of "eye-assist"; in my case, an ex-Met fingerprint magnifier. The blade set-in is only about 1-2mm per side, so it's important to get it right. I find that if I draw the loaded head between finger and thumb, and feel any "catch", then it's not quite right.
Taking the blade corners off a bit seems a simple precaution, and I'll try that next time.