i have TITAN/180MAX .we tested both in yard.
180 max now has TITAN floor.
both are heavier but not much.
180 max you can face tree and it does have more leg room than the titan because of round front bar.

but you have to use seat to climb with 180 MAX or use sling to sit on OR do as i do, i sit on round bar but I HAVE LONG LEGS.short legs you cant do it.

bigger floor on both is plus in winter with heavy clothes on and boots. i have 2009 180 max with the viper floor .

if you dont get enough leverage on the 180 MAX it will slip on a RED OAK tree.sharpen teeth on both and you will be fine.

we climbed a RED OAK while a garden hose was used to wet the tree.we went right up /down without slipping and had to pull the floor out of oak at times.
IF YOU DONT GET MOST LEVERAGE ON BOTH YOU CAN SLIP ON RED OAK.being on bar at front or close as you can is must on RED OAK to keep from slipping.