I cannot be hundred percent certain this was the exact solution. Prior to taking a week off for vacation I was struggling to flat bench 62KG. When I came back I started to use my new olympic bar and olympic weights (olympic comp. grade). I suddenly felt more power on my bench than ever before as I have never used an Oly bar and weights ever. Two weeks into using an oly bar and weights I blitzed 70KG like it was nothing and am going for 75KG this week and feel mentally good about lifting it.
My thoughts are perhaps its because the bar is bigger and I have more surface area to push against. I'm sure its the oly bar and not the vacation. Anyone else ever come across this or is it just bizzare?