Starway Side-by-Side mount, Doumount for parallel use of 2 telescopes on one mount, VC4

This is an excellently made product, but there are 3 issues you need to take into account before buying it.1. Can your mount cope with the combined weight of all the items you intend to attach to it, plus the Starway etc. The Starway side-by-side mount weighs 909 grams (well mine did!). Also see 2 below, but you will not only need to add up the weight of your scopes, and cameras etc you intend to use , but also the additional pieces of metal work you need to actually attach the Starway mount to your main mount or scopes.2. How are you going to attach the items you want to use? As stated above I used this Starway mount with either a Celestron 6" scope or a Celestron 9.25" scope one end, the other end was used to carry a Meade PST for solar imaging. I was using these telescopes on a standard Celestron CG-5 EQ mount. Both the Celestron scopes needed the standard Vixen bars changed for longer ones, so they could be fixed to the Starway, and a completely new one(or one of the 'spare' bars reused from one telescopes, plus some hole drilling!) to mount the PST to, the PST only had camera tripod holes. Although the Starway main bar is also the same dimensions as a long Vixen bar, if you want to use the excellently made claps at either end, they are at right angles to the bar if you clamp the Starway mount to your main scopes Vixen clamp. So you would have to check seriously if your mount would work with a vixen bar rotated 90 degrees to 'normal'.3. Check how you are going to balance the Starway mount on you main mount. The clamps at either end of the Starway bar, beautifully made though they are, are fixed in place by screws and cause anything that is mounted using them as they are supplied to extend a long way to either side of the main balance point of the balance point of your main mount. The clamps are not adjustable. There is possibly a better way to use the bar than the way I have described, but after investing so much in the Starway bar already I was loath to spend a lot more. Longer vixen bars to extend the scope bars are quite cheap if you shop around.I am extremely pleased with the Starway mount. For use as a ready aligned night setup and a sun setup it allows me to quickly get observing something thus extending the limited good weather sky viewing slots in this green and pleasant land!