Multiple studies on carbocation cascade rearrangements and terpene biosynthesis confirm that hydride shifts and alkyl/methyl shifts can occur consecutively within carbocation intermediates.
The claim states that hydride shift and methyl shift can occur consecutively in a carbocation. Papers [4] and [10] discuss complex carbocation rearrangement cascades involving multiple sequential shifts (such as successive alkyl and hydride shifts). These mechanisms demonstrate that consecutive shifts of different types are well-established in carbocation chemistry. Therefore, the balance verdict is SUPPORTED.