Utraquism - not in the sense of the heresy that it is essential to receive the blessed Sacrament in both kinds, but as regards the problems of clergy who habitually use the Roman Rite in utraque forma - affects one in a couple of other ways. One is tempted to
(1) reintegrate into the OF the manners, not explicitly forbidden, of the EF. I have in mind, for example, the joining of thumb and forefinger after the Consecration of the Host; kissing the Altar before turning away from it. I have kept away from doing this because of a feeling that life is complicated enough already; and if, as well as keeping OF and EF distinct in one's mind and habits, one also had to juggle with 'my own personal improvement of OF', life would be even more complex.
(2) use the EF 'private prayers of the priest' (as at the Offertory and before Communion) in the OF. I have avoided this for the same reasons; also because it would have knock-on effects, such as the Host resting on the Corporal from the Offertory onwards. Above all, of course, it would be contra legem and would amount to creating one's own rite which would be neither OF nor EF.