35 in 3rd works thats not bad. I ran mine for a few months without a tach and was way low on my rpms. Right around 3k. In a 35 zone I would be in 3rd. Gentle cruising rule of thumb with your gears would be 4th at 40, meaning don't even consider 4th til you hit 40. 5th at 50 if sustained crusing at 50 won't hurt the bike but you again will be at about 3000 rpms.

I try to aggravate one person a day. Today may be your day.