Fer gawd sake get one of 'em.
When I first started I got a cheap pointer one. Then I thought I had educated hands and worked freehand It worked... for awhile. Then I started stripping or shearing things. I don't do as much heavy duty anymore but... When I'm in doubt, 'ol pointer is still there for me.
By the by: If you have't got a cheap impact driver, get one. I mean the approx $10 kits that include various screwdriver bits and can work with modest size sockets. You smack 'em with a hammer which make the driver/wrench both press in and screw out, (or even in if you're nuts). VERY useful for seized screws in motor cases, even with WD40).
I'll tell you something else. I recall pointer torquing a leaking 2 stroke head to spec on an H2 750 Kaw, but No effect. I asked the dealer and he tossed off that the studs could easily take 2x that torque. Still no effect. I then knew there was another problem and didn't torque more to break the studs, (these break IN THE BLOCK = @!#$%^*& TROUBLE). A good friend showed me how to dial guage the head. Yep, it was warped. No wonder there was no seal. He had grinding compound, (cheap), and we ground the head within tolerances. It was as good as gold after that. Strangely, neither of the other heads warped, (a 3 holer, y'know).
Of all the bikes I have ever had, this one stands out as one of, or more likely, The best. Too bad a 4x4 decided to Mate with it... but that's another story.