Looking for some information. My son just got approval for the tslim insulin pump. We have been happy medtronic users for 4 years, but are now excited to move to the tslim. In the past we have been happy with mios and the 90 degree insertion. I think in order to keep the MIO type of inserter with the leur lock that I will have to order these from Animas. We have always used the 90 degree - but I see the 30 degree (angled) sites advertised also. Who uses these (30) and why? We have been have with the regular 90 degree BUT my son is very thin. Didn't know if this was better for thinner kids or what - Just looking for some information - thanks.