DST: Impact on trading systems when the clocks change?

So in a couple of weeks clocks in the UK change. My method of trading has been successful for the last 6 months and is based on the early hours of uk market opening. I am with GO Markets who are GMT plus two. When I do my testing for the 5 months from oct to march I find that my system is more successful if I do not adjust the hours to suit the new UK market opening hours. I am puzzled by this and now have a conundrum - Do I adjust my settings in accordance with the clock change or not?

Do professional traders in the UK and europe trade different hours in winter than summer?

Thanks for anything

max

Hi max Pips,

I just becoming crazy around the same problem like you. My trading system is profitable with DST and really lot less now, that there is no DST.

The point is to change the starting point?
Did you resolve, and how?

For me, my system is based on uk open so I guess the decision was easy. Last year I would have been marginally more profitable not changing the hours but when I think of the logic behind what I do, changing the hours to suit UK opening is the only real answer.

In the week and a half since the UK clocks changed the changed hours have been far more profitable.

My live accounts are with Alpari and Go so Alpari I did not change as that is aligned with UK hours anyway but GO I did.

max