I've never use a silicone-based lubricant. Frankly, I've barely used water-based (but that will change as soon as my next order is shipped). As such, I don't know much about silicone-based lubricant except that it works for shower sex, whereas water-based lubricant doesn't, and that it's not safe for silicone (and other) toys. So beyond the shower sex part, why do people (you, specifically?) choose silicone-based lubricants over water-based lubricants? Is it thicker? Does it last longer? Is it less runny?