Jason.....

An inexpensive option for the rear is to go Darkside and try a car tire. Looks like the average pressure from the guys here is in the 32 - 34 lb range in the back. For about $150 or so, you could try that out. Hopefully those here who are riding on a CT will chime in as to comfort WITH the stock rear shock. That's cheap city compared to Arnott or Traxxion plus the benefit of God knows how many miles you'll get off that CT.....30,000 miles or more? I've got a back-up rear black rim with a brand new Bridgestone on it from a trike maker and will be putting a CT on it over the next few weeks to see if the GF gives it a thumbs up or down. I've yet to find the sweet spot on the rear knob setting to date for both of us.