Pension charges

I've been paying into a managed pension for many years. It's done reasonably well but the charges are 1.3%. Now that the fund has grown it's several thousands pounds each year in fees. Recently I've taken far more interest in investing and wondered if transferring it to a SIPP may be better where charges will be in the hundreds rather than thousands. My fear is I make a mess of things and save fees but lose on the pension value. Do people think 1.3% is high and has anyone else transferred to a self managed pension and glad they did so?