That's a great pull. I wouldn't be trying to pull a PR only two weeks before a meet, but if you have found that works for you then go ahead. My problem is that I would use up too much physical and emotional energy pulling a PR to hit an even higher number only two weeks later. I would certainly recommend you rest and not do anything too strenuous from here on out so you are fully rested for the meet. Again, take my advice with a grain of salt if you have been successful with this type of approach in the past.