I headed directly west, staying under 1,800 feet, my eyes darting between the landscape, my instruments and my iPad. Just before hitting the surface Bravo I banked right, smoothly executing a perfectly coordinated turn north, and headed for Mount Helix. I studiously remained under the Bravo until my iPad indicated I had passed it. Then I turned hard west, called up the tower at KMYF and was cleared for a squeaky-clean wheel landing. Pretty much a perfect morning flight! Well, it was perfect until I started taxiing back to the hangar and ground control told me they had a number for me to call for a possible pilot deviation. Exhilaration turned to dread.