no one can answer that but you. and then let us know. Do you want to make it more HH balance? if so go for it. Those tensions sound really low. so yeah, bump em up to 50 and report back to us with your findings. Im using a 16x19 with no lead. And Lux 4g 125 at about 55, and its awesome. I have to say despite my love for other sharp edged polys, i played side by side the lux with another blade strung with MSV focus hex, and the 4g is way superior in feel. So 4g is my definite favorite poly as of now. I may just go to 50lbs on my next 4g string job. and may try a gut mains 4g cross hybrid.