Thinking of taking a surfboard to the lake tomorrow to have a go unstrapped.

Just wondering what i should use? At my disposal,

DHD project 15 Rounded square tail, 6'1' by 19 1/4 by 2 3/8 My favorite board I'd hate to damage it.

Shotgun Round tail, 5'6' by 20 1/2 by 2 1/2 My daughters board, in excellent condition. If i damaged it everyone would hate me????

Niel Oak Rounded Square tail, 6'6' by 18 1/2 by 2 1/4 old board i've snapped and had repaired and havent ridden for years. If i damage it who cares!!!

Maddog 5'8' 20 bt 2 1/4 foamy. Hard bottom, round nose like a mini mal


So i'd like to use the 6'6 as I dont care if i damage it but wonder if it's just to big??? Could have 20 knots tomorrow and i have a bandit 8m and 11m at my disposal kite wise.