bugbear":18uevc66 said:
Does anyone know where the **** this (false) rumour started?
BugBear
You could check your back catalogue of F&C for Clifton reviews. (circa 2002/3 ish if memory serves, which it often doesn't)
I won't mention any names and I am working from memory. The reviewer found the test sample wasn't flat and had a several thou bump behind the mouth. The reviewer discussed this with someone at Clifton, who said that it didn't matter. The reviewer said that it did matter, and I agree.
Don't know if the person at Clifton who said that is still there, but from recent comments it would seem that current production doesn't suffer from such problems.
More recently in issue 137 (feb 08 ) of F&C there was a visit to the Clico factory. In that article it is said that the flatness is tested with a 1.5 thou feeler gauge on a surface plate, any sole that allows the feeler gauge to pass is rejected. If there is a 1.5 thou bump behind the mouth, you will not be able to take a shaving finer than 1.5 thou, which is thicker than the fine shavings I take. Note that I am not suggesting that the current manufacture does produce planes with a 1.5 thou bump.
I have mostly L-N planes and all of them have benefited from some sole flattening, blade flattening and work around the mouth/ chip breaker. At this price point (LV, L-N, Clifton) I think it is unreasonable to expect anything else. Even a Holtey plane won't take a nice fine shaving if your sharpening skills aren't up to scratch.
It also depends on your expectations, I went to my first L-N jack from an unmodified modern Stanley. It was a revelation (as I'm sure a Clifton would be). I then went on DCs course on tool tuning. I was worried that my L-N jack wouldn't benefit. I needn't have worried, there was plenty to do, and the improvement was astonishing. Although some of that improvement was no doubt due to my improved sharpening skills.