hi peeps just got my new welder and looking for gas, booked a bottle of 20L mig gas from a local SWG stockist, i just cant figure out how most of you would compare them with BOC offer, £60 deposit is fully refundable and we get £20 cashback for first bottle if the deal is still on, BOC offer that lot of people has taken u pay rent and cheaper gas but get nothing back when u done welding one day, hows it compared?? help please