I got my used 2010 Spyder RT-S SE5 about a year ago, with about 12,500 miles on it.
Since then I put about 2,000 miles on it, and have found it sometimes difficult to shift when neutral is involved.
I have not noticed any issue with shifting up when accelerating.
However, when it is hot, after say half hour of highway cruising, it starts having difficulty shifting down.
Getting into first as slowing to a stop light, and especially getting in and out of neutral when I want to reverse, sometimes it just won't go there.

I'm about to do some maintenance on it, so if there are any hints of what to look for to resolve this I'd appreciate it. I am going to do the following, plus whatever is recommended:
Engine oil and filters (both engine and transmission).
Air filter.
Spark plugs and wires.
Rear tire.

Thoughts on:
Exhaust gaskets (necessary, and where to get the gaskets?).
Rear bearing seals and wear sleeves (again, is this normally done at ~16,000 miles?).

And hopefully finally, what is a good, small scissor lift to use to get the rear wheel up?
I have ramps that I plan on backing onto to make the oil change and rest easier to get to.

Thanks much.
Sully