I've read parts of theory on this and general outcome seems to be tightening up slightly preflop however keen to get a wider understanding.

I often play on a UK site which doesn't have any antes at any stage in the tournaments, also all tournaments are 100% 6 max. Stakes range from £5-£33 MTT's

Couple of questions

• What are the key adjustments to make in this instance, would this be purely be a tighter opening range in certain positions?
• Any other thoughts around what plays would be +EV when no antes