All personal choice...
Going fixed, multi piston calipers is on my list for the 2 seater rebuild, but not for my trucks
Again, personal choice and nothing wrong on this threads upgrades by others...even sticking with OEM, all personal choice and I’m not into dinging anyone over their choices
Going larger calipers dictates larger wheel dia so they will fit, but the down side for me, is that means going to lower profile tires....I like higher profile...even going to >85/100 ratio sidewalls to air down to have apparent +8-10 foot dia tires. My personal days of serious off reading are about over at 71, but if grandson wants to, that would get me back into that game in a flash (he’s 7 and really into automotive)
Don’t own a trailer right now, but when that day comes aground again, my money will be towards upgrading the trailer suspension, disc brakes & wiring....of course new wheels and tires (LT or commercial)
Still enjoy jawing and seeing other choices on this or any other automotive matter
PS...largest dia disc I’ve designed is 48” in dia (doughnut, center hole about 38”) and the regular ones in the 17” to 20” dia range. Windmill & Industrial with minimum of 100% duty cycle and some IIRC, +150% duty cycle