I will do the same thing myself. I'm so used to a climber that I'll look around and if I feel I need to go higher I just keep going. My achilles heel is carrying sticks in, hanging sticks, taking sticks down and carrying them out. I've gotten a lot better at it and streamlined it much more now, but what i still need to be conscious of is the gap between my sticks. I have 4 sticks, prefer to carry only 3, and I will short change myself some heighth not paying attention to my stick gap.
I'm very flexible so I can step high but I find myself not paying attention. I'll put a stick "x" high and think it's good and rarely compensate for it sliding down 6-7" when it bites. I'll get on my platform and look down and it looks like one big stick. LOL!
I'm just under 6' and weigh about 230 - I can fluctuate between 228 and 232 depending on time of day. I'm a gym rat and only have a 31" waist but I don't have a fear of heights. When I was a little kid my Dad owned a construction company and he worked my tail off until I graduated college. When I was little I was free slave labor. It wouldn't have done me any good to be afraid of heights or claustrophobic. If he told me to climb up and hang a fixture or was too big to get in a hole he told me to get in there.