>> David - Thanks for replying - if I'm a monster, it's not your fault. Did I say a monster was a bad thing?
>> I do have some trouble grabbing onto the tongue tho - it's an awkward position for me, and I prefer to lift it up, meaning touch the roof of my mouth where the hard/soft palates meet, then scrape in that position. Yes, I've used the raised tongue too. I find it OK for trimming, but not so good when the cutting is tough.... The screwdriver needs to be quite-sharp for it... and the screwdriver can slip in it.
Maybe that is what is happening -- maybe you have reached tough frenum and cannot cut it without slipping in the raised tongue position (without the tautness) and you need to go to the extended tongue position (with the tautness).
Yes, the extended tongue position is quite awkward. I (right-handed) pull my tongue with my left hand, out, up a little, and to the left a little, then tilt my head back a little. Line of sight is tight but just about adequate.
I've found, by the way, something different to you: that it can be hard for me to get it started and that is when I need the extended tongue position. The starting slit can be the harder part for me.... Until I get a groove started, it can slip if I don't make a taut tongue and apply pressure. Once I am into the groove, and go down a millimeter or two, it's easier and I can go to the raised tongue position to trim.
For tough frenum, extra tightness of the pull and extra pressure with the screwdriver helps. Maybe try holding the screwdriver closer to its cutting tip so you are almost rubbing. It's a fine, rubbing, scraping movement. Make the frenum hard by pulling, and scrape the hard surface of the frenum. I think the screwrdriver won't slip, but will cut instead, if the frenum is taut enough and the pressure sufficient.
>> It occurs to me that it must have taken forever for the yogis of old to scrape with their tongues, and maybe that was the point - not to rush. Any thoughts on this?Well, rush is relative.... For the many reasons discussed in AYP, slow might be better in most cases. I think the important thing is not to hurt yourself, or make a horrible chore out of it.
I have the manual dexterity, the motivation, the sight and sense of how to do this, and am completely unbothered by the pain and the blood which are both minimal in my case. If you are 'at this place' with it, this practice makes sense, otherwise, well, think it all out.
From what I hear from you, I might be going through a lot less blood and pain than you are.... are you sure you are not overdoing it?
BTW, if you are able to make yourself gag with your tongue, I think you might be close to entering the pharynx.
Also, Yogis have used blades ( normally ordinary knives I think) to cut the frenum. There will always be people taking a fast track to Kechari. Some of them will be misguided in it, and some of them won't.
Best,
-David