As steel needle sets go, the Rapid Ds from Accuchek which have the luer tubes for the Combo pump and will also fit the Animas Vibe (with a bit of cutting away a tiny bit of the flexible wings either side of the luer connection with a pair of scissors), are easy to insert in the backside and most other places as long as the tail piece of the swivel connector about 8ins along the tube, can be undone ok. The only place where this is difficult is on the arm, as trying to undo the swivel connector one handed is impossible unless help comes from another person.
The steel needle sets from Animas dont have a swivel connector along the tube, instead its just a tube clip connector which can be stuck on the skin or stuck on a piece of plastic bag (cut around the adhesive with a pair of scisssors) to enable the tube clip to be undone without sticking it to the skin. Taking out the steel needle after 2 days usually needs a good spray with adhesive remover as the adhesive keeps the needle firmly stuck to the skin or do what DD does and have a soak in a hot soapy bath to enable set removal to be ok.
Re.....the teflon 90 degree cannulas on the Flexlinks, Insets, Mio, Quicksets......these will leave a tiny hole when the cannula is removed but its not that big and usually fades within 3 days. The teflon 30 degreeTenderlinks, Silhouettes, Inset 30s, Comforts will leave a bigger hole when removed 3 days later but for many, this is just a small price to pay for what might be better control. The holes can be dabbed with T tree oil to enable good healing (stinks a bit lol) or some savlon. Regularly massaging some vitamin E oil or Bio Oil can also help Removing the teflon 90 degree sets dont need any spray as the cannula is flexible so pulling back the adhesive is easy. The 30 degree sets, I usually spray them as the adhesive is a bit stronger and carefully hold my finger tip over the hole as the cannula is pulled out to stop any flow of blood as the cannula is not quite the same as the 90 degree cannulas.
Unfortunately, in many hospitals, funding is set up with a CCG for just one account and that is with the company that supplies the pump. Getting another pump company to supply different sets is not always posssib anymore so some might need to buy privately or get another pumper to do a bit of discrete set swopping so that everyone is ok. Im not sure if INPUT could intervene on this matter.