Plus pitch rate inertia - the higher deceleration rate equals a higher nose-up pitch rate, and the aircraft will tend to go further into the stalled regime. For this reason, high pitch rate stalls in non-laminar flow wings tend to be more exciting (laminar flow wings can be the reverse, since getting deeply into the stalled regime quickly usually ensures that both wings stall together and avoids much risk of an asymmetric stall, and thus possible incipient spin).
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