Bouldering + Feet

So I need to loose weight and do some exercise and I did some indoor climbing / bouldering with a friend while on holiday. I was wrecked but it was good exercise. I found a local place and did it again and was less wrecked. So that's good.

My main concern is footwear/feet care.
There seems to be 2 schools of thought - 'no pain no gain' whereby the shoes are almost a size too small to force you to point your foot (like a ballet dancer) and then the (sane?) people who say have comfortable shoes so that you can focus on actually enjoying the activity.

I figure a good pair of shoes would be protective as well as comfortable but I thought I would feel out the 'local' diabetes community to see if anyone has any insights.

Yeah the day after, aside from being less sore than the first time, I felt quite 'hollow' because I'm assuming that all of my stored sugar/glyogen was used up. It takes a lot of energy to lift my 120kg ass up a wall.

It's tiring but really good, I like the mental side as well as the start/stop nature rather than the usual sports which involving running constantly for an hour.

Thanks for the advice