Recommended Tension

Tension suggestions:

Best range for "all" Natural Guts are generally going to be in the range of 40-55lbs. Natural gut holds tension very well. The thinner gauges will hold tension even better and therefore should be strung slightly looser. Although some players enjoy higher tensions and nothing wrong with it, not everyone can adjust to higher tensions and the great loss of power. This is the reason for the recommendation of lower tensions with natural gut, which also greatly increases durability.
If your looking for maximum durability "always" choose our top model PROV5(+) and not PROV5 or V5 which even though both are great strings they are not nearly as durable and more "performance" style oriented strings compared to our top of the line model PROV5(+) string. If durability is not as critical to you then choose either PROV5(+) for the 2nd best playability string option and regular V5 (cheapest cost but lower quality serosa) as you 3rd option.

SUGGESTED MAX TENSION RANGES:

V5 15G 35-54LBS
V5 16G 35-52LBS
V5 17G 30-50LBS
V5 18G 30-48LBS (no guarantees as this is a thin specialty gauge string)
PROV5 15G 35-72LBS
PROV5 16G 35-68LBS
PROV5 17G 30-58LBS
PROV5 18G 30-50LBS
PROV5(+) 15G 35-78LBS
PROV5(+) 16G 35-72LBS
PROV5(+) 17G 30-72LBS
PROV5(+) 18G 30-60LBS
PROV5(+) 19G 25-55LBS (we are the only ones in the world offering 18G/19G and although they should work awesome because our PROV5(+) are amazing strength and durability 18G/19G cannot guarantee durability so please do not expect miracles) Simply an amazing technological break through to have this thin gauge available in PROV5(+) and normally always quite reliable as well. They are awesome! 
For players that demand the highest tensions up to 70+lbs, our PROV5(+) is highly suggested as they hold incredible tension and are extremely resilient to all weather conditions and very strong tensile strengths.

Some things to add regarding NGW High Performing Monofilament Polys:
1) They are the most Durable
2) A much softer, easier string on the arms that play phenomenal when combined with Natural Gut
3) Increased Spin and Control, but less powerful. Another reason to Hybrid with Natural Gut (Natural Gut suggested on the mains) will help offset some of the loss of power with Polys and add extra softness to the bed while increasing control. Generally the thinner Poly the better and best placed on the crosses. If Durable is a concern try our natural gut on the crosses, but generally this is not an issue especially with the extreme durability of our PROV5(+).