Yeah, but im not goin back so fast infact first time i go B i get shoes and almost zeal
and the second time i go back i get zeal then i just w8 to get B.F Sword.that way ill have 50%++ crit chance easy and l8er i will have 75% when i have the Youmuss´s Ghostblade l8er in game :P

Tryndamere gets 1% crit chance for every 2% health he's missing. With only a Phantom Dancer and Infinity Edge you'll have 50% crit chance at 100% health. You will get that crit chance up in no time. Taken into account that your Attack Speed should by high aswell, you'll crit the **** out of them anyway. No need for higher crit chance in my opinion.

Although, I would swap at least the Marks for Crit Chance. You might want that crit chance from the start already, otherwise you'll be stuck with 2% until you get your zeal, which is ****ed up.
I also start with an Avarice Blade, because of the crit chance. It's a better choice imo, and it's cheap.

maybe it is, but what if u se a fleeing enemie with like 800 hp and u only manage to get in 1 hit on him, dont u want that hit to be as high as possible? thats why i took on crit dmg! and besides he got some crit chance u know!!

Crit chance is better than Crit damage. It's mathamatically Proven.