I find the SR version fuller bodied, more complex and sweeter. I strongly prefer the SR version of both Plum Pudding and Mississippi River.
I agree with this. In both versions, some varietals were changed and added to make them a little different and more complex. That's why a previous poster noticed some creaminess in the SR where he didn't so much in the regular PP.
Side by side comparison reviews of the blends:
Seattle Pipe Club Plum Pudding:
The Cyprian Latakia is smoky, woodsy, earthy, musty sweet, and is a team player with the Orientals and Virginia even though it is the lead component. The woody, earthy, floral, herbal, vegetative, herbal, dry and lightly buttery sweet, spicy Orientals are an important supporting ingredient. The Virginias have a little grass and light tart citrus along with a bit of earth, wood, bread, and some tangy, piquant dark fruit with a touch of “barbecue” in a secondary role. The spicy, raisin, plum, earthy, figgy perique is a minor player that lurks in the background. The unsweetened black cavendish adds some smoothing brown sugar, and seems at times to hold the overall flavor together. A pinch or two of gold cavendish barely adds any toast. The nic-hit is in the center of mild to medium. The amount of strength is a slot short of the medium threshold. The taste does reach the medium mark. It won't bite or get harsh, but does sport a slight rough edge here and there. The expert blending provides a very consistent, mildly sweet, rather savory, campfire flavor from first draw to final puff. If you break it up a little, but leave it in small chunks or layers, you'll get more of what you're supposed to get in addition to a slow, cool burn, though you'll have a fair amount of relights. Regardless of how you prepare it, there won’t be much dampness in the bowl. The pleasant, smoky after taste will linger a little, and stronger room note lasts a little longer. I would not classify this as an all day smoke, but this is a blend you can repeat with ease.
Seattle Pipe Club Plum Pudding Special Reserve:
Though it is true that the smoky, woody, earthy, musty sweet Cyprian Latakia is the most important component, the other constituent tobaccos synergistically combine to form a cohesive, multi-dimensional flavor. The black stoved and red Virginias are also upgraded leaf especially for this Reserve blend. They offer earth, wood, and a little grass and bread, fermented tangy ripe, stewed dark fruit, and tart and tangy citrus with a light barbecue essence. The sun cured Orientals not present in the original Plum Pudding add a bit more sweetness, depth and dimension to the complexity. The dry, buttery sweet and sour, wood, earth, herbs, vegetation, floral and smoke from the Orientals also sport a pinch of salt in the background, a little less so than they do in the other version due to the upgraded Turkish leaf. There is a continual undercurrent of spice, raisins, plums, and figs from the earthy perique, though the spice is lightly more obvious. The unsweetened black cavendish provides a brown sugary smoothness in a small support role. The nicotine status is a shade closer to medium than it is to mild. The strength and taste positions are medium. It won’t bite, and any chance of harshness is tamed by the black cavendish. The pressed kake plug is easily broken apart. The tobacco is a little moist, but I did not feel the need to dry it. I recommend not totally rubbing it out. I broke off small pieces and dropped them into the bowl. It burns a bit slow, cool and clean with a very consistent and intricate, deeply rich and creamy smooth, smoky, woody sweet and savory taste from start to finish. It requires some relights, and leaves just a little moisture in the bowl. It sports a very pleasant, lingering after taste with a stronger room note. It’s not quite an all day smoke, but is certainly repeatable.
Aside from the previously noted differences from the other Plum Pudding, PPSR is a little sweeter, deeper, smoother and richer in flavor, with nearly the same strength and taste levels. Its sweetness has a mildly more fermented character, and the “barbecue” note a tad more pronounced. Well balanced, you’ll notice virtually all of the inherent aspects of the tobaccos in every moment of the experience.