Yup, like Saaya said,
The P5K3 Deluxe worked like a charm for me with LN2 ( I only benched with it & LN2 three times... ) [ and yes...I'm in intoxication....I haven't benched with DI/LN2 for 3 months or so ]

I shall be benching with the board & LN2 in a week or so...I'll give you pics of my insulation, etc if you want

[ Actually both my P5K3 Deluxe's worked ok under LN2 ]