The Edinburgh judoka, who has stepped up from Under-81kg to Under-100kg, says winning last month's European Cup in Serbia at the age of 34 has focused his mind.
"It's put it in my head that I could win a medal for Scotland. Now it's decision time," he said.
"It's whether the team feel I can, whether I feel I want to focus more of my time on training for it. The difference is that I weigh 90 kilos and the guys I am fighting weigh 105 kilos. I've always fought against bigger and heavier guys in practice and sparring but a competition is a whole different kettle of fish.
"It's been a long time since I entered any tournament not thinking I could win it.
"I thought I could have won the Olympics but it wasn't to be. Every event I've gone into over the last four or five years, I've known I had the capability to win it. As long as I do the things I'm meant to do properly and have a good day, I could win it.
"Winning in Serbia has made me think that I can win the event at the Commonwealth Games. I'd fought two weekends before that in Slovakia and finished fifth and that was the first time I'd dipped my toe in the water at that weight.
"It's strange because I'm eating and drinking going into the weighing room whereas before I wasn't eating or drinking anything for two days before the weigh-in. To fight at 100 kilos, you have to be above 90 kilos, so I'm having to put on weight."
Burton's priority remains coaching - he is assistant national high performance coach - but his late decision to compete in Glasgow this weekend is not insignificant.
There are seven men's places in the Scotland team for Glasgow 2014 and Burton has qualified for one of them but there are six months of qualification left and he could still be edged out.
"I had to fight the events to hit the minimum standard," he said, "Being a coach you have to be above any queries or criticisms if you are selected ahead of another athlete. I feel I have to qualify above and beyond what other people have to do, or at least to the same extent.
"We can have up to two in each weight category and it will be based on ranking but also down to the head coach and the selection panel - which I'm not part of.
"The Games are important for Judo Scotland, as it's the first we've been involved in for 12 years. We want to make the most of this opportunity."