After the feedback I received from the last set of loops I sent off to samplephonics. I wanted to push myself to achieve the sound they were after. The tutorial videos have definitely improved the quality of my samples, especially with drums. Techniques such as layering (which I would normally stay away from) have given my drums much more character. For example I have layered the snares with 3 different textures. The lower transient, the body and the tail. All individual layers are pitched to work with each other and sound much cleaner in the mix of the drums. I am sending off the loops tomorrow so will put up a preview of the sounds on here.