Yes...certainly a bit over built and heavy. I theorize this maybe why this scope didn't appear to get much use. It was paired with an Orion Paragon tripod. While I expected to not have a use for that mount, it turns out it's pretty good and will be very nice with my 60mm. However, the pronto was too back heavy for that mount. But I have other mounts the Pronto will work well on.
I addressed the back-heavy issue by using a 4" slotted dovetail rail (ADM). The slots allow the rail to be shoved fore and aft on the clamshell. So between sliding the clamshell on the rial (I generally just keep it all the way rearward), sliding the ota in the clamshell (for gross balance), and sliding the dovetail fore-aft in the mount (fine balance), I can always get a balanced setup. This idea is similar to TV's Balance Aid that they sell in order to balance the Pronto on a Telepod with heavy 2" accessories. Because I like to switch between heavy 2" ep's for low power, and 1.25" ep's for high power, which are, of course, much lighter than 2" ep's, I use a TV Equalizer (a heavy brass 2" to 1.25" adapter) to help maintain balance.