content: I recently purchased a DD50 from ebay - and it was about what I expected. Yamaha make generally good trusty products - but this kit has the same basic flaw as all electronic druma I have tried - that is - the pads do not pick up light strokes - and also don't respond to heavy hits. In other words they don't react anything like real drums.Ok this is a very cheap unit so you get what you pay for right? - well actually - I did design and market electronic drums (analogue type) back in the eighties - and I spent a long time working on this "response" thing - eventually getting very impressive results.So when I got the DD50 recently I immediately set about improving things - and I have devised a fairly simple way of improving the response drastically with a bit of add-on circuitry.If you are interested please email me. mickwest1@hotmail.com