The Heath meter is a good deal and works well. Like all "monimatch" type circuits, it can be calibrated to be very accurate at full scale into a perfect 50 Ohm load. And like all similar circuits, once the termination isn't 50 Ohms, the power readings will be off. Same holds true for the Bird Thruline. Two pretty inexpensive but reasonably accurate and easy to use true PEP meters for HF are the Autek WM-1 and the Ameritron AWM-30. I like the WM-1 better (although it's larger) because it indicates forward power on one large meter and directly reads SWR on another large meter; so no switches, no squinting to see where needles cross, etc. It's a good circuit, and they have a patent on it. It also only about $159 brand new. There are several others on the market, including some which include only a coupler and software and use your computer to run the algorithms for SWR and display the results. I've used the Wavenode units (I was a Beta site for them when the product was in development and still have a prototype) and they are very, very good -- although they do require a USB connection to your computer. I have never in my life heard of the FCC citing anyone for running excessive power in the ham bands. It's probably happened, but I've never heard of it.