2 oz loads kick like a mule, they make it difficult to get off a second or third shot quickly and a 2 oz load will cost $1.50 to $2.00 more per shell to reload than what 1-1/2 oz loads of TSS cost to reload.
With 5 lbs of TSS shot you can load forty 2 oz loads or fifty three 1-1/2 oz loads. I-1/2 oz loads of TSS #3 or #4 shot are devastating on coyotes. If you are shooting coyotes at 70 yards and less you will get more clean kills with 124 TSS #4 shot pellets in a 1-1/2 load than you will get shooting 1-1/2 oz loads of TSS #2 shot with 81 pellets in a 2 oz load.
The TSS 1-1/2 oz #4 shot loads have 53% more pellets than 2 oz loads of TSS #2 shot, or 43 more pellets per shell
With my TSS #3 and TSS #4 shot loads I use a Mod choke, because TSS shot patterns very tight so I can have a wider pattern and have a very high pellet count in a 20" to 30" circle.
I have some 2-3/4" 1 oz loads of TSS #4 shot that I reloaded for small ladies or kids to shoot. They have about 82 pellets per shell and don't have much recoil. I would bet that the 1 oz loads of TSS #4 shot would give you more clean kills at 55 yards and less than Hevi-Shot Dead Coyote T shot loads with only 50 pellets per shell. or 41 pellet lead #4 buck 3" loads