I usually come in with 65 to 75 percent of the buy in. And say I suck to rvr and miss I will bring it back to 60 percent. Usually in a different room - ring game- If I'm losing.
When your at 65-75 percent you don't get the most for your money but the better players will be more likely to call a shorter stack all in since they are not losing there whole stack. When you have 20 bucks in a 10 cnt room(10 buck by in) and your raising big time unless your wild and they have a geat draw or hand there not callin big raises. Not every one will call you especially if you are a tight, aggressive, such as my self.
And of course you lose less if your all in w a nut str8t on flop and get rvr flushed or rvr 4 of a kind, or you get your set str8tened out or your set flushed or your flush boated.
I've made up my mind I will lose at times but not often