I'd have trouble going past the PST with additional 40mm filter. It's really really easy to setup and always "just works".
But... the PST's aren't great for photographic work (my webcam will only reach focus on a PST if I use a Televue 2.5 x barlow ... my celestron short 2x barlow won't do it, or any other combination I've tried.
Also the PST's have a much smaller "sweet spot" than the 60mm filter on my Megrez. If I get it right, I can see the full solar disk with wonderful detail the whole way around in my Megrez with 22mm Panoptic. That's nice. Moving it around makes little difference. However in the PST's you really need to move the image around as you see lots more detail when looking in the central sweet spot.
If I had the money I'd go for a 60mm dedicated solar telescope, one of those SolarMax ones or something. I can see why they would be of such a benefit considering the compromises between the PST vs 60mm filter on non-dedicated scope. But I can't see myself ever justifying spending the money on it at this stage, so the only viable option would be the PST and then upgrade by adding the 40mm filter on if/when I had the money.
You really notice it when you get the alignment perfect. You can think you have it right, but not really. Then you tweak it a little more and "wow!" there it is, stunning detail. There's a lot of times I use the 60mm on the Megrez and don't quite get it right, I can tell it's not the best it should be. The incidence of that is reduced with a PST where it's all aligned and you just tweak it.
... gez, I didn't know I knew so much about this thing... I must've learned a bit in the last few months
I'd better stop talking and go meditate on a 12" mirror before I convert to the dark side (err... 'light side') of solar viewing!
Roger.