exclusively pumping

I'm 6 weeks and 2 days pp and I've been pumping every 3 hours and I have a really good supply. At night I've gone 4 hours and have no issues. Sometimes I don't wake up every 4 and end up going 5-6 hours and still no issue with supply. I produce enough to freeze 10-20 oz a day. I wanted to try pushing it and only pump every 3.5 hours. Wanted to get other people's opinions on it.. Wasn't sure if it's still to early to push it out another half hour. I've been doing that since yesterday and still getting plenty of milk as if I was pumping every 3 hours.