I'm considering switching from a Microgel Radical MP to a PD Cortex. I'm really stocked up on Technifibre NRG2 18 Gauge because no retailer keeps 18G in stock locally. I like the extra spin and pop it gives my 18x20 Radicals and I've never been a big string breaker. It doesn't appear that 18G is a popular choice with the PDs and I would guess because of the more open 16x19 string pattern. Has anyone hit with an 18G in the Pure Drive and what is a good starting point on tension if I use this string? I don't want to string it too tight for elbow concerns. Thanks.