Wow...there is a lot of bad information being written here. Please understand that a linear will
not always ride better than a progressive rated spring, and vice versa.
To the OP. First there are visual differences between both springs. Progressive springs are funky looking as they are not proportionally shaped (think of a pig's tail,) whereas the linear springs are usually symmetrical. Both types of springs behave differently...The biggest determining factor on how comfortable/harsh a vehicle rides, is the spring rate.
Linear springs have a specific spring rate which consistently remains throughout the travel of the spring. You will see this type of spring on the majority of race applications. On race applications they need to know exactly where and how the vehicle will handle under certain conditions, the predictability of linear springs allows that to happen.
Progressive springs react in different ways. Not all street/city/highway driving is the same. With that said, spring manufactures strive to give you the best performance with the most amount of comfort, on a variety of different road surfaces. Let us call it the ''happy medium'' So figure a low immediate spring rate to handle slow speed bumps/imperfections and then something a little firmer as the travel increases to give it proper handling.
My suggestion for a
daily driver would be to find a spring manufacturer that you trust, that provides the right amount of drop you are looking for with or without the OE dampers, and disregard all this crap about linear vs progressive. Whether or not the springs offered are linear or progressive, it doesn't matter as the manufacturers more than likely provided a spring rate
appropriate for your VW. The argument on which rides better, well that's silly as everyone has a different perception on how their vehicle should feel/ride/handle.
I have a 2015 PP GTI on order and am scheduled for delivery in four more weeks. I have watched everyones input on lowering the GTI. Most everybody is running VWR springs and are very happy and from what I have seen they look great eliminating the wheel gap. I ordered my GTI with DCC and am also looking to get rid of the wheel gap. I have ran H&R sport springs before in the past and was happy with them but it left me wanting just a tad more lower. My mechanic is suggesting to me to run the H&R because they are a progressive spring and that I don't want to run a linear spring. Any input would be great