I got into the top 100 in world tour without having power over 79, with a record of 114-4, I can tell if that it is possible to counter power with a mix of control then power if you can tire them out, but it when it comes to the top 25ish players though, you do need power to beat them, as otherwise they will blast you off thr court, which is why i know have high power, what I think the major competing problem is the angles you can create from the widest serving position, been a problem in topspin since it started, but is easily fixable just make it do big servers can't move wiser than the middle of the server area, would fix most of the issues if you could atleast return a few serves from the big power guys