Are you confident in that 225lb bench? If so no issues. I just like being conservative when estimating these things. You can always make it up a little later in the loading pattern.
One trick I like to use is overloading prior to the max lift. In other words, doing a negative with 260-275 or so, resting a good 15 min and then attempting the 235. Just an idea...
Now nice going on the squat. It does sound like setup issues gave you some problems but it's part of the game. 305 deep is a hell of a lift and 5% on that puts you at 320 to peak. I wouldn't be surprise if you got more.
Great job being honest with yourself too. It makes ALL the difference in this game, especially when you're training off percentages. I can't tell you the # of times I blew a loading pattern in my younger years b/c I started with what I wanted my 1RM to be
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