I've cracked one using it fixed. I also found my partner was riding a cracked stronglight that was on here fixed gear (same style of crank). I don't recommend these vintage cranks for fixed. I believe the alloy is brittle and there is not enough material on the non-drive cranks around the spindle. They both cracked from the corner of the taper out. In my case I heard it pop climbing a hill out of the saddle and checked when I got home. In her case she hadn't cracked it all the way through and was riding it unknown. I replaced it with a sugino mighty.

My thoughts exactly, love the colour, love the straight blades. This is a great frame for the conversion. Love it!

I assume you have yet to put clips and straps on right? Won't be doing much skidding without. Skidding is easiest when you unweight the rear wheel, lock and then bring the weight back a bit. It's easier with hoods or moustache bars.

I road for years with brakes and was always super fast. I will also point out that you can stop way quicker and conserve more energy with a rear brake, it is way more effective. I have also ridden brakeless in the summer for a more casual style of riding. Brakes are safer and faster I agree. I'd ride fixed now, but the place I live is small and when I commute I usually want cargo capacity. It's unfortunate. I still have a hankering and might put mine back together at some point.