Considering that the classic timer is actually 21+8+1.15, I would advise giving 2.5 or 3 turns of reserve on all modes, rather than 2. That is, 10-12+4+1, 16-18+6+1, 21-24+8+1.
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Considering that the classic timer is actually 21+8+1.15, I would advise giving 2.5 or 3 turns of reserve on all modes, rather than 2. That is, 10-12+4+1, 16-18+6+1, 21-24+8+1.