the winningest player is always the aggressive one
The Winningest players are always going to be the most aggressive player. That doesn't mean being stupid...you can be aggressive and still minimize backoffs with keeping sessions short and moving around and being aware of when the gig is about to be up.
1. Being aggressive does not mean instant backoffs everywhere...it may mean getting a lot of backoffs and that isn't necessarily a bad thing if you are willing to travel.
2. Pushing the limits somewhat enables you to get more information about your opponent. Just like if you just call in Hold-Em you find out little information versus a raise where you get to see the reaction of your opponent. You will get most of your EV at the handful of casinos that let you sit there and blast away for days, weeks, or even longer until your cumulative win is so big they just give up. Always play politely and you'll never find out which casinos really want to play with you.
3. There are more casinos now than ever before. They open new ones and I can recycle older ones faster than they can throw me out.
4. Getting thrown out quickly can be a good thing...at least the casino doesn't get to know you very well. In six months you can put on a hat and try again on a different shift and use a slightly different approach...maybe you'll last longer...or maybe not.
5. The player who uses cover is also increasing his variance and consequently N0. Run some simulations with various cover packages on CV-Data and see the actual costs in terms of reduced SCORE and increase N0. You can really throw yourself overboard with cover very easily unless you are playing a very very good game. Obviously, the higher the base SCORE of any given game the more politely you can afford to play it either with giant spread and lots of off the top cover OR very narrow spread and little cover.
6. The intolerant casinos, you know who you are, will probably throw out the player using cover fairly quick anyway...so the cover is a waste of time.