Haha. I do planks for a minute now and that is the longest minute of my life!
Seriously, my low back starts to feel a pinch the longer I hold a plank. I don't like to push that too far and maybe do myself a mischief.
I still have to do the back challenge anyway.
I am Anton Zdravko Martin!
Best meet lifts: Sq 150 Kg (330 lb), Bench 120 Kg (264), DL 160 (352) @89 Kg (197)
Best gym lifts: Sq 375, Bench 280 (pause), DL 385 @205 or less
Goals beyond my wildest dreams, 600 Kg raw total, 200/160/240
Hack away at anything which isn't essential. Do what you love, and do it often. Fazc.