Maybe 20 years ago now I got several endpins called Camelopard, from a man who invented them. They are made from hollow titanium and filled with a dampening material. The sound difference on my bass was noticeable and I have always used them...I think he died and went out of business several years ago but he had given me a few of them.... Anyway here is the point: I play a small bodied bass now a Contrabassetto which requires the pin to be extended pretty far out. Recently I put a new set of spiro reds on and I was experimenting with my stance. I pulled the end pin ALL the way out, to where it was held in without extra on the interior of the bass. Instantly the bass sounded WAY different, massive resonance and sustain. Really a kind of sound that I have been looking for for a long time. At first I attributed it only to the new spiros but eventually I put the pin back where it was a bit lower and more comfortable, but the resonance decreased considerably. I pulled it back out and there it was again...really a profound difference. Now the guy who made these pins was a cellist and they have the pins out really far all the time. On my previous bass (a 7/8) I kept it 3/4 of the way IN the bass. So the question is: can an endpin really make that much difference? I am getting used to playing with the bass much higher then I usually like it just because the sound is so addicting and the openness and sustain so improved. The guy who invented them (the filled titanium pins) was totally convinced that it massively improved the sound of the instrument and now I believe him but I am starting to think that the pin should be all the way out (even if you cut it to fit) so that the full rod is sticking out rather then only a portion with the other part in the bass. I am curious what luthiers and players think about this?