I saw where you've posted on the CN site (that was you, wasn't it?) and have gotten a lot of responses in favor of the Lunt scopes. I have the Solarmax II 60mm BF15 so I'll chime in here: visually, you will enjoy either Lunt or Coronado scopes and can safely buy based on your local price and availability--neither is in good supply right now but things should be improving. Although both brands of scope can be used for fine imaging, the Lunt seems to have the advantage due to pressure tuning of the etalon (no "sweet spot") and a focusing system that is more camera-friendly than the Coronado sliding tube-helical focuser. Customer service is better for the Lunt scopes--I hope things are improving but Meade/Coronado has acquired a reputation for poor customer service.
Is a 60 mm scope better than the 40mm PST or 35 mm Lunt? I don't have the Lunt but I do have a 40mm Coronado MaxScope. Side by side with my 60mm SolarMaxII, the 60mm scope is not an order of magnitude better than the 40mm scope. These comparisons can be a bit invidious because optical qualities of these scopes, being all essentially hand-made, can apparently vary some. PSTs, for example, have the reputation for the odd really superior performer. So, in the end it really comes down to personal preference, pricing, and availability. How badly do you want a scope?