4 or 6 bladed fans

On the social zoom call the other night (which I thoroughly enjoyed, thank you everyone!) someone – Darell maybe – mentioned 6 bladed vs 4 bladed fans, and potential issues with these.

I was convinced I had a 4 blade fan, but it turns out my observational / counting skills are not what I thought… it actually has 6 blades.

My inclination is to change it for a 4 since I’ll definitely be fitting the Kenlowe fan I’ve been given, and the 6 blades make it almost impossible to access the points.

Were I to fit electronic ignition – which I probably will – then I’m guessing I won’t need such frequent access, but I’m interested to hear others’ opinions on all of the above!