I doubt that weight distribution had anything to do with this. Most likely it was something to do with the front tire itself. Wipe it and the rim down with rubbing alcohol. And check the tire pressure, which could also be the problem. Other than than equipment, it might be a user issue. Since the position is new to you, it's possible that you weren't cornering correctly in terms of steering and lateral weight distribution with this position. Not that there's anything wrong with the position per se, merely with how it might change your bike handling. Google "how to corner on a road bike" and do some reading and watching.

All that said, I've never had a front tire slide out, only a rear and in the rain. I have a low and stretched out position and corner fairly aggressively. Weight the inside bar and don't steer the bike. Simply lean it over and ride it around the corner, weight in the outside pedal. In sharp corners, use the whole lane, out - in - out. Don't put your head over the centerline!