Nothing wrong with a pancake if it suits you. I prefered an IWB a Bianchi 3S pistol pocket carried behind the hip. In your situation, I'd look hard at access when seated in your office chair.

Anything... a coffee table or other object... that can slow an attacker is a good thing. Be prepared to tactically retreat behind a desk to buy time.
Back when I was training, the stakeout squad was prone to applying hidden steel plates underneath store counters and the walls to rear observation points.

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NRA LIFE
Reserve Officer 9yrs