Wot compressor ?

[mrspeedy]

Couple of questions for the pro painters on here .....

Firstly compressors, do they need to have a reservoir, there's a few cheapish ones about, like this one - http://www.machinemart.co.uk/shop/pr...-compressors-2

but it doesn't have the reservoir, is that essential or wouldn't it make much difference ......?

What would you recommend ?

And secondly, what do you guys use in terms of a blade for cutting out liquid masking in the shells ? Is there an ideal blade shape or is it down to super steady hands ?

Your thoughts appreciated