Hi Has anyone had any problems with round core strings and locking tuners (with Bigsby) I was looking into Gabriel Tenorio Strings and the website says that they recommend going with hex core. I have just put on DR Pure blues and no problem but i don't want to make future purchases as i normally buy in bulk. I'm normally a d'addario player but fancied a change. DR's i'm loving! Gabriel Tenor are expensive but apparently last much longer?!