I have a bit of a problem. My relatively new (I own it for few months) Marcus Miller P7 4 string is having problems staying in tune. Actually, my old bass 4 string Fender Precision Special (MIM) also didn't stay in tune well, but I wrote it off at the age and the suffering the instrument has gone through. Don't know, maybe it's my playing (to keep it simple, I hit strings hard). In fact I have developed a rather bad habit of checking every string after each song. It's not like the bass de-tunes after every song, but after every second, maybe every third it does, so it's better to go safe then to play a song with a de-tuned instrument (been there, done that, it's horrible). About my playing, well, I try not to be biased about it - maybe my bad technique is the reason of this de-tuning. I'm one of those players who breaks strings on his bass guitar quite regularly (3-5 times a year). In fact, I broke the G string last rehearsal even tho I didn't use it (that tells a lot about my possibly a bit too chaotic right hand movement). BUT playing hard is a must to get the tone I'm going for. You really can't get that attack without hitting that string hard. To illustrate my point, here's a clip from a gig I played in few weeks ago (I put it on 4m39s where I play a part with hitting strings hard, but it's best to listen from start) - I'm sorry that I have to give you such example of my playing as it's not the best/sharpest in this example - I'm off time too many times. Btw, something had bitten my left arm near the wrist (the spot where watches usually are), it was swollen hard for 3 days. It was a bit uncomfortable and painful to play. But I've played in a lot worse states (Can't stand? Then sit or lie down!) and the show must go on! Anyway, what's your opinion on this? Maybe I should get new tuners? Been looking at set of Gotoh GB10 for 60-70 USD in Ebay. They look nice (good reviews), also cheaper then Hipshot by quite a lot (at least a 1/4th).