A HST eats up 15% of your HP compared to a gear transmission, but boy is it worth it. Push forward to go forward, push harder to go faster, push reverse pedal to go reverse. Let off either pedal & the HST will slow the tractor to a halt faster than it could get it up to speed.It's that easy. No constant clutching to deal with. A HST is mechanically simpler than a power shift transmission & as long as you keep your hydraulic fluid clean should be equally or more durable than all the clutches & other parts in a power shift. If you were farming or skidding logs, the efficiency of a power shift might be worth it, but I'd wager not. I can & do poke my pallet forks within an inch or 2 of the window of my truck loading & unloading without worry even if my truck is down. I'd be worrying & not getting as close if I was in a gear machine, especially if it was downhill to my truck.
Basically get in a HST & a power shift, run around the lot a little & see if the dealer has a pile of dirt, snow or doesn't mind you making sandcastles in his gravel. Spends some time on each doing loader type stuff & I'll be you will be a HST convert in no time.
Tires... R1 ag, R3 truf, R4 industrial
R1 ag tires are skinnier & have the big lugs on them. They are designed for maximum traction in minimum traction mediums (mud & snow)
R3 turf look like big balloons because that's what they are. Big so they spread out the weight & rounded so they don't tear up the lawn. They have the worst traction. (some people prefer R3 tires with chains in the snow & ice though)
R4 industrial tires are a compromise. They are wider so they don't tear things up as much, they are heavier duty so they last longer (especially on pavement, which destroys R1s). They have better sidewalls so they have a better carrying capacity. Because of these compromises, they don't have as much traction in mud & snow, & they don't self clean unlike the R1s.
I went with R4s on mine & have been generally happy with the compromise. No issues blowing out my front tires when pushing my loader to it's max. I get pretty good traction most of the time. Last 2 winters I did fine plowing, although turning while plowing was mostly a dream. I added chains to the font wheels this year & it REALLY helped, I can turn as well as plow about 30% better.
Loaded rear tires. CUTs are generally borderline unsafe with a loader & unloaded rear tires. Loaded rear tires keep your back end on the ground when lifting heavy loads. You still need proper
ballast on the back (that weight hanging on the back unloads weight off the weak front axle onto the heavy rear axle). As a new guy I'd recommend getting the rear tires ballasted from the get go no matter what tires you get.
Why LS? Closest dealer? Got the best vibe from the dealer? Not a wrong way to go, but I'd recommend checking out the competitions stats & feel once you decide on a specific mode or a few. Just to make sure you can get a different take on things.